Stage 1What Gardening Is, and How to Use This Guide

Gardening is growing plants on purpose, in a space someone has chosen to look after. The definition covers a single tulsi plant in a courtyard, chillies on a Mumbai window ledge, a terrace of grow bags in Bengaluru, a village kitchen plot and a Mughal garden cut through with water channels. What they share is attention. A field is farmed; a garden is tended, which means someone walks through it, looks, and decides.

It is also the one hobby whose material is alive. A seedling left alone for a week in May can double in size or die. So the gardener's real job is not to make plants grow, which they already know how to do, but to arrange what they need and keep out of the way. That comes down to five things: soil or a growing mix, light, water, food, and protection from whatever eats or infects the plant. Nearly every problem traces back to one of them.

How a plant lives, in one page

Roots anchor the plant and take up water and dissolved mineral nutrients through fine root hairs. They also need oxygen from air spaces in the soil, which is why a pot standing in water can kill a plant as surely as drought. Many roots form partnerships with soil fungi, called mycorrhizae, that extend their reach in return for sugars.

Stems are the plumbing. The xylem carries water and minerals up, and the phloem carries sugars from the leaves to roots, flowers and fruit.

Leaves make food by photosynthesis, using light to combine carbon dioxide and water into sugars and releasing oxygen. To take in carbon dioxide they open pores called stomata, and water escapes through the same pores. This loss, transpiration, pulls water up the stem. Wilting on a hot afternoon can be the plant protecting itself. Wilting at dawn is a real alarm.

Buds are where growth happens, at the tip of each shoot and at each node, where a leaf joins the stem. Pinching, pruning and cuttings all work through buds (see Stages 7 and 9). Flowers exist to make seeds. Once a plant has set seed, many annuals decline, which is why picking beans and okra young keeps them cropping.

Who this guide is for, and how to use it

It is written for four readers. The complete beginner will find the main text and the First Steps boxes enough to start this week. The practising gardener will find the reasons behind the rules. The serious grower will find numbers in the boxes marked For the Grower. The general reader will find sidebars on history and argument.

Part I is gardening anywhere. Stages 2 to 5 cover soil, compost, light and water, and containers. Stages 6 to 9 cover seeds, propagation, feeding and pruning. Stages 10 and 11 deal with pests, diseases and weeds, and Stage 12 turns it all into a plan and a path from beginner to specialist. Stages 13 and 14 form a band on storage and preservation: saved seed, bulbs and tubers, tools, stores, a dried harvest and records, all with Indian heat and monsoon damp in mind. Part II, Stages 15 to 20, is the Indian story. Readers in India may want to read Stage 15 early, because sowing dates borrowed from European books are usually wrong here.

Stage 2Soil: Texture, Structure and pH

Soil is a living mixture of mineral particles, organic matter, water, air and a vast population of bacteria, fungi, insects and worms. A textbook picture of good garden soil is roughly half solid material, mostly mineral with a few per cent organic matter, and half pore space shared by air and water. Most soil problems are too little air, too little water held, or too little life.

Texture

Texture is the proportion of particles of different sizes. Sand runs from 2 mm down to 0.05 mm, silt from 0.05 mm to 0.002 mm, and clay is anything finer. Sandy soil is gritty, drains fast, warms quickly and holds little water or nutrient. Clay is sticky when wet and hard when dry; it holds water and nutrients but drains slowly and can starve roots of air. Silt is smooth and floury, often fertile, and crusts easily. A loam is a balanced mixture, and most garden plants like it best.

You cannot practically change texture. Adding a little sand to clay can even make it worse. You can change structure, and organic matter improves both extremes.

Structure

Structure is the way particles clump into crumbs, called aggregates. Large pores between crumbs carry air and drainage; small pores within them hold water. The glues are humus, fungal threads, root and microbial secretions, and earthworm casts.

Structure is easily destroyed. Feet compact beds, digging wet clay smears it into clods, and heavy rain on bare soil shatters the crumbs into a crust, a familiar sight after the first monsoon storms. It is rebuilt by adding organic matter, keeping soil covered with plants or mulch, and keeping off the growing area. Beds narrow enough to reach from a path, about 1–1.2 m wide, are the simplest way to do that.

pH

pH measures acidity on a scale from 0 to 14, with 7 neutral. The scale is logarithmic: pH 5 is ten times more acid than pH 6. It matters because it controls which nutrients a plant can take up. Most vegetables and flowers do well between about 6.0 and 7.5. In strongly alkaline soil, common in the drier north-west of India and wherever hard water is used, iron, manganese and zinc become hard to absorb, and young leaves turn yellow between green veins. In strongly acid soils, such as the leached laterites of some high-rainfall regions, phosphorus gets locked up, calcium and magnesium run short, and aluminium can damage roots.

Test before acting. Colour-chart kits are adequate, calibrated digital pens are better, and many cheap two-pronged probe meters are unreliable. A laboratory test also reports nutrients; Stage 20 notes where to get one. Garden lime raises pH, and dolomite lime adds magnesium too. Elemental sulphur lowers it over several months. Gypsum does not lower pH; it is used to reclaim sodic soils. Wood ash raises pH and is caustic, so use it sparingly with gloves. It is usually easier to choose plants that suit the soil.

Stage 3Organic Matter, Compost and Vermicompost

Organic matter is the remains of plants and animals at every stage of decay, ending in humus, the dark, stable material left when decay has run its course. It is the most useful thing you can add to almost any soil. In sand it holds water and nutrients; in clay it opens up the structure; in both it feeds the organisms that make nutrients available to roots. In hot climates it breaks down fast, and many Indian soils are low in it, so it has to be added every season. Compost is how gardeners make it on purpose.

How compost happens

Composting is controlled decay by bacteria and fungi, later joined by worms, mites, beetles and fly larvae. The microbes need carbon for energy, nitrogen for protein, water, and in fast methods oxygen. A large, well-balanced heap warms up, can reach roughly 55–65°C, hot enough over time to kill many weed seeds and disease organisms, and then cools and matures. Finished compost is dark, crumbly and smells like a forest floor.

Gardeners simplify the balance into greens, which are nitrogen-rich and moist, such as vegetable scraps, tea leaves, fresh grass and fresh manure from plant-eating animals, and browns, which are carbon-rich and dry, such as fallen leaves, straw, shredded plain cardboard and coconut husk. Greens alone make a smelly mess; browns alone sit for a year. Start with about two to three parts browns to one part greens by volume, keep the mix as damp as a wrung-out sponge, and turn it every week or two. In Indian heat a well-managed heap can be ready in roughly two to three months.

What to leave out, and what goes wrong

In a simple home system, leave out meat, fish, bones, dairy and oily cooked food, which attract rats. Leave out pet faeces, which can carry parasites, and diseased plants and seeding weeds unless the heap reliably runs hot. A heap smelling of ammonia or rotten eggs is too wet or too green: mix in browns and turn it. A dry heap needs water and greens. Flies mean exposed scraps, so bury them. The fat grey-brown larvae common in Indian bins are usually black soldier fly larvae, which are harmless and efficient decomposers. Cover heaps in the monsoon and water them in the dry months.

Vermicompost

Vermicompost is organic matter that has passed through composting worms: fine, dark and excellent for pots and seedlings. The worms are surface-dwelling species, chiefly Eisenia fetida, the red wiggler, and Eudrilus eugeniae, the African nightcrawler, both widely used in India. Ordinary garden earthworms will not settle in a bin.

Fill a shaded, ventilated container with moist shredded cardboard, coir and dry leaves plus a handful of old compost, and add worms, which vermicompost units sell by weight. Bury small amounts of chopped scraps and wait until most has gone before adding more; overfeeding is the usual cause of a sour bin. Go easy on citrus, onion and garlic, and add nothing salty or oily. In a north Indian May, move the bin to the coolest shade you have.

After two or three months, push the finished castings to one side and put fresh bedding and food on the other; the worms move across within weeks. Dilute the liquid that drains from the base well before using it as a mild feed. Use vermicompost as part of a mix or a top dressing, since on its own it holds too much water.

Stage 4Light, Water and How a Plant Uses Them

Light is a plant's food supply and water is its transport system. Get these two right and most of gardening becomes easy. Get them wrong and no fertiliser or spray will help.

Light

Gardeners describe light in rough bands. Full sun means at least six hours of direct sunlight a day, part shade about three to six hours or bright filtered light, and shade less than three hours. Fruiting plants need the most light, because a fruit is a large store of sugar. Tomatoes, brinjal, chillies, okra, gourds and most flowering annuals want full sun. Leafy greens, many herbs and root crops will crop in part shade, more slowly.

In much of India there is a second side to this. From April to early June the plains get more sun and heat than many plants can use: leaves scorch, flowers drop and pollen fails. Afternoon shade helps, or a shade net, sold by the percentage of light it blocks. Around 35–50 per cent suits most vegetables in the hottest months.

Direction matters too. India lies in the northern hemisphere, so the winter sun stays low in the southern sky, and a north-facing balcony can get almost no direct sun from October to February. East-facing spaces get gentle morning sun. West-facing spaces get fierce afternoon sun, excellent in winter and punishing in May. Indoors, light falls away sharply with distance from a window.

Water

Roots need air as well as water, and more container plants are killed by overwatering than beginners expect. Waterlogged mix drives out air, fine roots die, rot sets in, and the plant wilts, so its owner waters again.

Water thoroughly, then wait. Water until it runs from the drainage hole, or in the ground until the soil is moist to a hand's depth, then not again until the plant needs it. Push a finger into the mix: if the top two or three centimetres are dry, water. Lift the pot: a dry one is noticeably lighter. Look at the plant at dawn: leaves limp at noon in May may be coping, but leaves limp at dawn need water now. Big-leaved gourds often droop in afternoon heat and recover by evening without help.

In the ground, water deeply and less often, so roots go down to moist soil. A small pot on a sunny terrace in an Indian summer may need water daily, sometimes twice. Water early in the morning when you can; less is lost and leaves dry quickly, which discourages fungal disease.

Mulch is any layer spread over the soil, such as dry leaves, straw, coconut husk chips or compost. It cuts evaporation, keeps roots cooler, suppresses weeds and, if organic, feeds the soil. A layer of 5–8 cm on beds and 2–3 cm on large pots noticeably reduces watering.

Water quality and systems

Borewell water in many parts of India is hard or slightly saline. Salts build up in pots, show as a white crust, and burn leaf tips. Flush pots occasionally with a large volume of water, ideally rainwater, so the salts drain out. Stage 16 covers terrace water sources.

For busy people, drip irrigation with a battery tap timer delivers water slowly to each plant, and self-watering containers hold a reservoir below the mix that wicks up as needed.

Stage 5Containers, Potting Mixes and Drainage

Most city gardeners in India grow in containers, and a container is not a small piece of garden. It has different physics, and most failures come from treating it like a bed.

Why garden soil fails in a pot

Garden soil in a pot compacts and holds too little air. In the ground, water drains into the soil below; in a pot it cannot, so a saturated layer called a perched water table collects at the bottom. Its height depends on the mix, not on what is beneath it. That is why a layer of gravel or broken pot at the bottom does not help. It simply moves the wet layer up into the mix and leaves roots less usable space. Use a free-draining mix all the way down, and keep the drainage hole open.

Choosing a container

Every container needs drainage holes. A decorative pot without them is a cover pot: stand a plastic pot inside it and tip out standing water.

• Terracotta breathes, cools roots by evaporation and dries fast; it is heavy and cracks when dropped.
• Plastic is light and holds moisture; cheap plastic turns brittle in strong sun, and black plastic heats up.
• Cement and concrete pots are durable, very heavy, and can make the mix alkaline when new.
• Grow bags of fabric or thick polythene are light and cheap; fabric stops roots circling but dries quickly.
• Metal heats badly in Indian sun, and wood rots and can bring termites.
• Recycled buckets work once holes are drilled. Never use a container that held chemicals.

Size matters more than material. A larger volume holds more water, changes temperature slowly and forgives a missed day, and most beginners use pots that are too small.

Potting mixes

A good mix holds water, drains freely and keeps air around the roots. A widely used starting recipe in India is roughly equal parts by volume of good garden soil, well-rotted compost or vermicompost, and cocopeat, the spongy material left after coir fibre is extracted from coconut husk. For better drainage, replace part of the soil with coarse sand, perlite or rice husk. For a lighter terrace mix, reduce the soil or leave it out.

Cocopeat can carry salts from processing, so buy washed grades or soak and rinse compressed blocks. It holds water well but carries almost no nutrients, so mixes rich in it need regular feeding.

Mixes wear out as organic matter breaks down and drainage suffers. Refresh the top few centimetres each season, and repot long-lived plants every one to three years, teasing out circling roots. Old mix can be reused with fresh compost, but mix from a diseased plant belongs in a hot compost heap or a bed far from your pots.

Stage 6Seeds and Sowing

A seed is a young plant packed for travel. Inside the seed coat is an embryo with a tiny root, a tiny shoot and one or two seed leaves called cotyledons, together with a food store to feed the seedling until its true leaves can photosynthesise. To germinate, a seed needs water, oxygen and a suitable temperature. Some carry dormancy, a built-in delay such as a hard coat, that stops them sprouting until conditions are right.

Kinds of seed

Open-pollinated varieties are pollinated naturally by wind, insects or the plant itself. If kept from crossing with other varieties, their seed produces plants like the parent; they breed true. Heirloom varieties, often called desi varieties in India, are open-pollinated varieties handed down over many years. F1 hybrids are the first-generation offspring of two distinct parent lines, crossed deliberately. They are often vigorous and uniform, but their seed does not breed true, which is why hybrid seed is bought fresh each season. Stage 13 builds on this.

Sowing directly or in trays

Root crops such as carrot and radish dislike being moved, and large seeds such as beans, peas, okra, maize and most gourds grow strongly where sown. Tomato, brinjal, chilli, cabbage, cauliflower, onion and most flowering annuals are usually raised in a nursery and transplanted. That gives seedlings a protected start and frees the bed while they grow. Plastic plug trays, also called pro-trays, give each seedling its own cell of fine mix, such as cocopeat with a little vermicompost.

Depth, warmth and moisture

Sow a seed at about two to three times its own diameter. Very fine seeds, such as petunia, go on the surface and are pressed in lightly. Keep the mix moist but not wet, with a cover over the tray until shoots appear. Most warm-season vegetables germinate best at roughly 25–30°C, while spinach, lettuce and coriander germinate poorly in real heat; coriander sown in an Indian May is a classic failure. Okra, bitter gourd and beans benefit from soaking overnight, and very hard coats, as on sweet pea, can be nicked with a nail file on the side away from the scar.

Damping off, hardening off and transplanting

Damping off is the collapse of seedlings at soil level, caused by several soil-borne fungi and fungus-like organisms that thrive in wet, crowded, stagnant conditions. Prevent it with clean trays, fresh mix, thin sowing, careful watering and good airflow. A collapsed seedling cannot be saved.

Seedlings raised in shelter need hardening off: over about a week, give them a little more sun and wind each day. Transplant in the evening or on a cloudy day, water in well, and shade them for a day or two if the sun is fierce.

Stage 7Cuttings, Layering and Grafting

A seed is a new individual, a genetic mix of its parents. A rooted piece of a plant is a clone, identical to the plant it came from. This vegetative propagation is how gardeners keep a good variety exactly as it is, and get a flowering-sized plant in months rather than years.

Stem cuttings

Cuttings are sorted by the maturity of the wood: softwood from soft new growth, which roots fast but wilts easily; semi-hardwood from shoots beginning to firm up; and hardwood from mature stems, slow but tough. The method is much the same for all:

1. Take a healthy shoot 10–15 cm long in the cool of the morning, and keep it moist.
2. Cut just below a node, where roots form most readily.
3. Strip the lower leaves, and halve any large leaves left, to cut water loss.
4. Insert the lower third into moist, free-draining mix, such as cocopeat with coarse sand or perlite.
5. Keep the air humid with a clear plastic bag held off the leaves, in bright light out of direct sun.
6. When the cutting resists a gentle tug or makes new leaves, it has rooted.

Rooting powders containing the synthetic hormone indole-3-butyric acid speed rooting in many woody plants. Honey, aloe gel and cinnamon are popular substitutes, but the evidence for them is thin; clean cuts, humidity and warmth matter far more. In much of India the monsoon is the natural propagation season, because humid air keeps cuttings from drying out.

Some plants grow new plants from a leaf, as succulents and snake plant do. Clump-formers such as lemongrass, mint and spider plant can simply be divided into pieces that each carry roots and shoots.

Layering

Layering roots a shoot while it is still attached and fed by the parent. In ground layering, a low stem is bent down, lightly wounded underneath, pegged into the soil and covered; jasmine and bougainvillea layer easily.

Air layering, known in Indian horticulture as gootee, does the same high on a branch and is traditional for litchi, guava and pomegranate. Remove a ring of bark about 2–3 cm wide from a pencil-thick branch, pack the wound with moist sphagnum moss or soil and compost, wrap it tightly in clear polythene and tie both ends. When roots show through the plastic, usually after several weeks, cut below the ball, pot it up, and keep it shaded until it settles.

Grafting and budding

Grafting joins two plants so they grow as one. The rootstock provides roots, and the scion, a shoot of the chosen variety, provides the top. The union takes only if the cambium of each, the thin green growing layer under the bark, is held in close contact until it knits. Gardeners graft because many fruit trees do not come true from seed, and because a rootstock can bring vigour, dwarfing or tolerance of difficult soil.

Common methods include the cleft, veneer and whip-and-tongue grafts. Budding uses a single bud instead of a shoot and is standard for roses and citrus. Indian nurseries commonly multiply mango by softwood and veneer grafting. Keep the union above soil level, and rub off any shoots from below it, which come from the rootstock and will outgrow the variety.

Grafting and budding knives are very sharp. Cut away from your body and your other hand, work at a steady table, and keep a first-aid kit nearby.

Stage 8Feeding Plants

Plants make their own food from light, air and water. From the soil they take mineral nutrients, needed in small amounts to build proteins, enzymes and cell walls. Feeding means making sure those nutrients are there. It does not mean pushing growth.

What plants need

Three macronutrients are needed in the largest amounts. Nitrogen (N) drives leafy growth, phosphorus (P) supports roots, flowering and energy chemistry, and potassium (K) regulates water movement and helps fruit quality and stress resistance. Calcium, magnesium and sulphur are needed in moderate amounts, and micronutrients, chiefly iron, manganese, zinc, copper, boron and molybdenum, in traces. The three numbers on a fertiliser pack, such as 19:19:19, give the percentage by weight of nitrogen, phosphate and potash, always in that order.

Roots absorb nutrients in dissolved mineral form, whether the source was a bag of fertiliser or decaying compost. Organic feeds release nutrients slowly as soil life breaks them down, improve the soil as they do, and are hard to overdo but imprecise. Synthetic fertilisers dissolve fast and deliver exact amounts, but do nothing for soil structure and are easy to overuse. Most good gardeners use organic matter as the base and a measured feed as a top-up.

Reading the leaves

Deficiencies leave recognisable signs, although pests and waterlogging can mimic them. Nitrogen, magnesium and potassium can move within the plant, so a shortage shows first on older, lower leaves. Iron and calcium cannot move easily, so a shortage shows first on young leaves, tips and fruit.

Rules that prevent most harm

• Feed a plant that is growing, not one that is wilting, just transplanted or fighting pests.
• Water first; fertiliser on dry roots burns them.
• Measure. Excess nitrogen makes soft growth that aphids love, and salts build up in pots.
• Wear gloves with manures, cakes and granules, wash your hands afterwards, and keep all of them away from children and pets. Stage 14 covers storing them.

Stage 9Pruning

Pruning is cutting parts of a plant off on purpose. Most beginners either never do it or do it too hard. Done with understanding, it keeps plants healthy, shapes them, and often improves flowering and fruiting.

Why prune, and how plants respond

First comes health: cut out anything dead, diseased or damaged, the three Ds. Then airflow and light, since thinning crowded branches discourages fungal disease. Then shape, size and cropping.

The bud at a shoot tip releases hormones that hold back the buds below it, an effect called apical dominance. Remove the tip and lower buds break into growth, making the plant bushier. That is the whole principle of pinching out the tips of tulsi, basil, coleus or chrysanthemum.

Where and how to cut

Cut about 5 mm above a bud, sloping away from it so water runs off, choosing a bud that faces where you want the new shoot to grow, usually outward. Too close damages the bud; a long stub dies back and invites rot.

Remove a whole branch just outside the branch collar, the swollen ring where branch meets trunk, never flush with the trunk; the collar holds the tissue that seals the wound. Take heavy branches off in three cuts: an undercut, a top cut further out to drop the weight, then the final cut at the collar, so the bark does not tear. Do not paint wounds; research on trees has found that dressings do not prevent decay and can trap moisture.

Use bypass secateurs, whose blades pass like scissors, for live growth, and anvil secateurs for dead wood. Loppers handle thicker stems and a pruning saw anything thicker than a thumb. Keep blades sharp and clean, and disinfect them between plants when cutting out disease (see Stage 14).

Safety

Wear eye protection when cutting at head height, and gloves for thorny plants. Never work near overhead power lines; call the electricity supplier. A ladder and a saw together, or any large tree, is a job for a trained professional. In many Indian cities and states, felling or heavily cutting a tree, even on private land, needs permission from the municipal or tree authority, so check first.

Stage 10Pests and Diseases: Integrated Pest Management

Most insects in a garden are harmless or useful. Ladybirds, lacewings, hoverflies, spiders, tiny parasitic wasps, lizards, frogs and birds all eat pests. Spray everything that moves and you kill them too, and the pests return faster than their enemies. The aim is not a garden without insects but one where damage stays at a level you can live with. Integrated pest management, or IPM, is the name for that approach: prevention and observation first, chemicals last.

Know what you are facing

Sap-sucking insects, such as aphids, mealybugs, whitefly, scale, thrips and spider mites, weaken plants, and some spread viruses. Chewing pests include caterpillars and beetles, and borers such as the brinjal fruit and shoot borer tunnel into shoots and fruit. Fruit flies attack gourds, snails swarm in the monsoon, and pigeons, squirrels and monkeys need netting.

Fungal diseases, including powdery mildew, leaf spots, rusts, damping off and many root rots, favour damp, still air. Bacterial diseases cause wilts and soft rots. Viral diseases cause mosaic mottling, crinkling and leaf curl. They have no cure and are mostly spread by whitefly and aphids, so remove infected plants and control the insects. Blossom-end rot, sun scorch, cold damage and salt burn are disorders caused by conditions, and no spray helps them.

The IPM ladder

Work down the list and stop as soon as the problem is under control.

1. Prevent. Build healthy soil, grow plants in the light and season that suit them, choose resistant varieties, space for airflow, rotate crops, clean tools, and keep new plants apart for about two weeks.
2. Monitor. Look closely once a week at leaf undersides and growing tips. Yellow sticky cards show when whitefly arrive.
3. Identify. Know exactly what the problem is before acting.
4. Decide. A few holes do not matter. Act when damage threatens the crop or the plant.
5. Remove physically. Pick off caterpillars and snails, hose off aphids, cut out infested shoots, and use nets, barriers and fruit fly lure traps.
6. Use biology. Encourage predators with flowers and by not spraying. Products based on the bacterium Bacillus thuringiensis target caterpillars, and Trichoderma fungal preparations are widely used in India against some soil-borne diseases.
7. Use the least-toxic sprays. Insecticidal soaps and horticultural oils kill soft-bodied insects on contact. Neem oil, whose main active compound is azadirachtin, deters feeding and disrupts insect growth.
8. Only then, a synthetic pesticide, the lowest-toxicity product registered for that pest on that crop, used exactly as the label says.

Least toxic is still not harmless

Neem oil and soap sprays are pesticides. They kill beneficial insects they hit, scorch leaves in strong sun, and irritate skin and eyes. Test on a few leaves and wait a day. Spray in the early morning or evening, never on open flowers while bees are working. Garlic and chilli sprays burn eyes and skin. Never make a spray from tobacco: nicotine is highly toxic to people and animals.

Using any pesticide safely

• Read the whole label before buying and again before opening. It gives the dose, crops, protective equipment and waiting period.
• Protect yourself with nitrile gloves, long sleeves and trousers, closed shoes and eye protection, and a mask if the label says so.
• Mix only what you need, outdoors, and never combine products unless the label allows it.
• Spray in still air, away from people, water tanks, ponds and neighbours' plants.
• Keep children and pets away until the spray has dried, or as long as the label says.
• Respect the pre-harvest interval, the days that must pass between spraying and picking an edible crop.
• Do not eat, drink or smoke while handling pesticides; wash hands and face afterwards and wash spray clothes separately.
• Never pour leftovers down a drain or onto soil near water; follow the label's disposal instructions.
• If anyone is exposed or feels unwell, get medical help at once and take the container with you.

Stage 11Weeds

A weed is a plant growing where the gardener does not want it. Weeds compete for water, light and nutrients, shelter pests, and the fastest smother young crops within weeks.

Annual weeds grow from seed, set seed and die within a season, and their seed can wait in the soil for years. This reserve is the seed bank, and it is why one season of letting weeds flower means years of extra weeding. Perennial weeds regrow from roots, rhizomes or tubers, so cutting the top off only delays them. In Indian gardens, nutgrass or motha (Cyperus rotundus) spreads by small tubers that break off and regrow, and doob or Bermuda grass (Cynodon dactylon) runs by creeping stems. Both need patient removal of every fragment, or smothering. Lantana is a thorny shrub that invades neglected land and forest edges.

Methods that work

• Pull when the soil is moist, so roots come out whole.
• Hoe on a dry, sunny day while weeds are tiny, and leave them to shrivel.
• Never let weeds set seed. At least cut off the flowers.
• Mulch 5–8 cm deep; most weed seeds need light at the surface to germinate.
• Smother with overlapped cardboard under mulch, which kills most weeds beneath it over a season.
• Solarise. In the hottest weeks, water a bare bed well, cover it tightly with clear polythene and bury the edges. Over four to six weeks the heat kills many weed seeds and some soil-borne diseases in the top layer. The Indian summer is ideal for it.
• Plant closely, so weeds get little light.

Weedkillers have little place in a home garden. Spray drifts onto wanted plants and residues can persist in soil and compost. Never use a weedkiller sprayer for anything else.

Several weeds are traditional Indian greens: bathua (Chenopodium album) in the northern winter, chaulai (amaranth) in the rains, and kulfa (purslane) in summer. Eat one only when you are certain of its identity, it grew on clean ground, and nobody has sprayed it.

Stage 12Planning by Season, and a Practice Path

Good gardens are planned, even small ones. That does not mean a rigid scheme. It means knowing what the space offers, what you want from it, and when each thing must happen.

Survey, then plan

Before buying anything, find out how many hours of sun each spot gets (Stage 4), where the tap is, where strong winds come from, whether you have soil or containers, and, on a roof, how much weight it can carry (Stage 16). Then be honest about how much time you have each week.

Crops divide roughly in two. Warm-season crops, such as tomato, brinjal, chilli, okra, beans and the gourds, need warmth and are damaged by cold. Cool-season crops, such as cabbage, cauliflower, peas, carrot, radish, spinach and coriander, grow best in mild weather and bolt or fail in heat. In cool temperate countries frost sets the calendar. Across most of India heat and rain set it, and on the northern plains the cool months after the monsoon are the prime vegetable season (see Stage 15).

Draw the space roughly to scale and mark sun and shade. Put fruiting crops in the sunniest spots. Sow quick crops such as coriander and radish in small batches every two or three weeks, which is succession sowing. In beds, move each crop family to a new spot each season so that its pests and diseases do not build up: beans and peas, the cabbage family, the tomato family, onions and garlic, and the gourds. Companion planting attracts many claims. A few, such as flowering borders that draw predatory insects, have reasonable support, and many are folklore.

Looking after yourself

• Heat. From April to June, work early or late, wear a hat and drink often. Stop at once if you feel dizzy or confused; heat illness needs urgent care.
• Backs and knees. Kneel on a pad, lift with your legs, and move heavy pots with a trolley or a helper.
• Tetanus. The bacterium lives in soil and manure, and gardeners get small cuts constantly. Ask your doctor whether your vaccination is up to date, and clean wounds promptly.
• Snakes. Especially in the monsoon, snakes shelter in dense growth, woodpiles and stacked pots. Wear closed shoes, carry a torch after dark, and never reach blindly into cover. If someone is bitten, keep them still and get them to hospital immediately. Do not cut or suck the wound or apply a tight tourniquet.
• Floodwater and rats. Leptospirosis spreads through water and soil contaminated by animal urine, and rises in the monsoon. Wear boots and gloves in waterlogged ground, cover cuts, and see a doctor about any fever after exposure.
• Chemicals and allergens. See Stage 10 for pesticides and Stage 11 for Parthenium.

Storage and Preservation

Stage 13Storage: Saving and Keeping Seeds, Bulbs, Tubers and Corms

Most of what a gardener grows can be bought again. Some cannot. A brinjal a grandmother grew for forty years, a local chilli no company sells, a gladiolus from a friend's garden, a tomato you have selected for five summers: these exist only in the jar or basket where you keep them, and one badly stored monsoon can end them.

Seeds, bulbs and tubers are alive in storage. A seed is an embryo slowly spending its food reserves. Warmth and moisture speed that up and invite the moulds and insects that finish the job. Everything in this stage follows from one principle: keep living material dry and cool, and keep the conditions steady.

The enemies

• Moisture, the main enemy in India. Seeds absorb water from humid air, then age fast, go mouldy or start to sprout.
• Heat. Every rise in temperature shortens seed life. A closed room, tin shed or car in May can ruin a collection in days.
• Swings. A jar moved between a cold fridge and humid air collects condensation inside, and that wets the seed.
• Insects. Pulse beetles and weevils bore into beans, peas and grain.
• Rodents, which chew through plastic bags and cardboard.
• Mould and rot. One rotting tuber can infect a whole box.
• Well-meant fixes. Drying seed in an oven or full terrace sun kills the embryo. Sealing seed before it is dry traps the moisture in with it.

Which plants breed true

Save seed only from open-pollinated varieties (see Stage 6), because hybrid seed will not match its parent. How easily a variety stays true also depends on pollination. Self-pollinating crops such as tomato, beans, peas and lettuce mostly fertilise themselves and are the easiest place to start. Cross-pollinating crops are carried between plants by insects or wind, so nearby varieties of the same species mix. Gourds, pumpkins, cucumbers, maize, radish, onion, carrot and the cabbage family all cross like this. Brinjal, chilli and okra sit between: largely self-pollinating, but crossed by insects often enough that a variety you value should be kept well apart or have its flowers bagged.

Save from several good plants, not one: half a dozen at least for self-pollinators, and far more for crossing crops, especially maize, which lose vigour when inbred. Specialist seed-saving guides give isolation distances and population sizes crop by crop.

Harvesting, cleaning and drying

Dry-seeded crops, such as beans, peas, okra, radish, coriander, lettuce and marigold, dry their seed on the plant. Leave pods until they are papery and rattle, pick them before they split, finish drying indoors, then rub them in a bag and winnow off the chaff in a light breeze.

Wet-seeded crops, such as tomato, brinjal, cucumber and gourds, carry seed in fleshy fruit. Leave the fruit well past eating ripeness. Tomato and cucumber seed is best fermented: scoop seeds and pulp into a jar with a little water, stir daily for two or three days until a film forms, then rinse. Good seed sinks. Spread it thinly on a plate to dry, because it sticks to paper. Scrape chilli seed from fully ripe dried pods, wearing gloves.

Dry seed in shade with moving air, in a thin layer stirred daily, never in hot sun or an oven. Large seeds are dry when they shatter under a hammer tap instead of squashing.

The rule of thumb

Seed scientists use rough rules, usually credited to the seed physiologist J. F. Harrington. Within ordinary storage ranges, seed life roughly doubles for every one percentage point fall in seed moisture content, and roughly doubles again for every 5°C fall in temperature. The effects multiply. A companion rule says storage is safe when the temperature in degrees Fahrenheit plus the relative humidity in per cent is no more than 100.

That last rule shows the Indian problem at a glance. A room at 30°C, which is 86°F, would need air at about 14 per cent humidity, while monsoon air is often above 80 per cent. Open storage cannot work. Seed must be dried below the humidity of the air and sealed away from it.

Desiccant, jars and the fridge

A widely used home method finishes the drying with silica gel. Put air-dried seed in paper envelopes into a jar with roughly its own weight of freshly dried gel, seal it for about a week, then move the seed to its storage jar with a small sachet of dry gel. Indicating gel changes colour when it needs drying again (see Stage 14).

Store seed airtight, in glass jars with rubber-gasket lids or tins with tight lids taped at the seam. Keep each variety in its own envelope inside the jar. Plastic zip bags let moisture through over months, and cloth bags breathe, which is fine in a dry winter and fatal in a coastal monsoon. Divide treasured seed between several small jars and open only the one you are about to sow from, because every opening in humid weather lets in a jar full of wet air. Traditional Indian households stored seed in sealed earthen pots or plastered bins, often with dried neem leaves or ash against insects, on the same principles.

A refrigerator is an excellent seed store if the seed is dry and the jar airtight. Let a cold jar warm to room temperature before opening it, so moisture does not condense on the seed. A sealed jar of dry seed comes to no harm in a power cut. Many growers freeze dry beans and peas for a few days after harvest to kill pulse beetle eggs.

Labels and germination tests

Label every packet twice, in pencil inside and on the outside, with crop, variety, harvest date and place, original source and number of plants saved from. Keep a matching list in your records (see Stage 14).

Test older seed before relying on it. Roll 10 or 20 seeds in a damp paper towel, keep it damp in a loosely closed box somewhere warm, and count the sprouts over the next few days to two weeks. Eight sprouts in twenty is 40 per cent: sow thickly this season and grow fresh seed.

Bulbs, corms, tubers and rhizomes

These are storage organs for a resting season. A bulb, like an onion, is layered fleshy leaf bases. A corm, like a gladiolus, is a solid swollen stem base. A tuber, like a potato, is a swollen underground stem; a dahlia's "tubers" are swollen roots. A rhizome, like ginger or turmeric, is a creeping underground stem. All rot when damp and shrivel when hot and dry.

• Gladiolus corms. On the Indian plains they are grown through the cool season. Lift them when the foliage yellows, dry them in shade for two or three weeks, remove the old shrivelled corm beneath, and store them in mesh bags or trays in the coolest dry, airy place.
• Dahlia tubers. Also a cool-season flower on the plains. Lift the clumps when stems die back, dry them for a few days, and keep them in boxes of dry sand or cocopeat through the heat and the monsoon, checking monthly for rot.
• Onion and garlic. Cure them in airy shade until the necks are papery, then hang them in mesh bags or braids.
• Seed potatoes. Keep them cool, dark and airy. Light turns potatoes green, and green potatoes contain toxic compounds and should not be eaten.
• Ginger and turmeric. Keep the healthiest rhizomes, traditionally in shaded pits or heaps under sand, sawdust or dry leaves; in a flat, a basket of dry sand in the coolest corner. Replant as the monsoon arrives.

Store only sound pieces, shake off soil rather than washing, cure before storing, keep varieties labelled and apart, and never seal them in plastic, where they sweat and rot. Inspect monthly and throw out anything soft or mouldy before it spreads.

Stage 14Care and Preservation: Tools, Stores, the Harvest and the Records

The second half of the band covers the gardener's non-living kit. Tools last a lifetime if looked after. Stores of fertiliser and chemicals are dangerous if they are not. A small harvest can be kept, and records turn years of gardening into knowledge. The Indian climate shapes all of it, and gets its own section at the end.

Tools: clean, sanitise, sharpen, oil

Clean after every use. Knock off soil, scrub blades with a stiff brush, and then dry thoroughly, because water left on steel overnight starts rust. Sticky sap comes off with a rag and a little rubbing alcohol.

Sanitise between plants when cutting out disease. Wipe the blades with 70 per cent isopropyl alcohol or surgical spirit and let them dry. Bleach solutions also work but corrode steel, so rinse, dry and oil afterwards.

Sharpen little and often. A blunt blade crushes stems, and crushed tissue heals slowly. On bypass secateurs, sharpen only the bevelled edge with a small diamond file or whetstone. Follow the existing angle for a few smooth strokes, then take one light flat pass on the back to remove the burr. Hoes and spades take a flat file pushed away from you at the existing angle. Clamp the tool, wear gloves, and never test an edge with your thumb.

Treat rust early with a wire brush or steel wool, then a thin film of light machine oil. Oil wooden handles once or twice a year: clean, sand rough spots, rub in boiled linseed oil, and wipe off the excess after about half an hour.

Sprayers, hoses and cans. Rinse sprayers three times after use, pumping clean water through the nozzle. Keep a separate, clearly marked sprayer for anything that harms plants. Coil hoses out of the sun, which makes plastic brittle, and in frost-prone hills empty hoses and cans before winter nights.

Where tools live. Hang them on a rack or keep them in a closed box, under cover and off the floor, with blades covered. Before the monsoon, oil all bare metal and put a sachet of silica gel in the box of small tools. Near the coast, oil monthly.

Storing fertilisers, potting mix and chemicals

Fertilisers stay in their original bags, folded and clipped inside a lidded bin, off the floor, dry and shaded. Urea and many granular fertilisers absorb moisture and set into lumps. Oil cakes, bone meal and dried manures attract rodents, dogs and mould, so keep them in rodent-proof bins with tight lids. Potting mix bags stay closed and off the floor; mix that smells sour has gone airless and should be spread out to air before use. Dry compressed cocopeat blocks keep almost indefinitely.

Pesticides, including neem-based and "organic" products:

• Keep every product in its original, labelled container, tightly closed. A product with a lost label can no longer be used safely.
• Never pour any chemical into a food or drink bottle, even briefly. Decanted chemicals are a common cause of accidental poisoning, especially of children.
• Store them locked up, out of reach of children and pets, away from food, medicines and animal feed. A lockable steel box in a shaded corner of a balcony keeps them out of the living space.
• Keep them out of sun and heat, which breaks many products down and makes plastic containers deform and leak.
• Buy small packs you will finish within a season.
• Dispose of unwanted products as the label directs and under local rules. Never burn containers, pour contents into drains, or reuse an empty container.

Keeping a small harvest: drying herbs

Pick herbs in the morning once the dew has dried, and leafy herbs such as mint, tulsi and basil before they flower. Tie small bunches and hang them upside down in airy shade, or spread leaves on a mesh tray. Sun bleaches them and drives off the aromatic oils. They are ready when leaves crumble and stems snap, usually in one to two weeks. In the monsoon, air-drying often turns to mould; a fan helps, as does an oven on its lowest setting with the door ajar, checked often. Discard anything mouldy.

Store whole leaves in airtight glass jars in a dark cupboard, dated, and use them within about a year. Kasuri methi, dried fenugreek leaves, is the best-known Indian example. Curry leaves lose much of their aroma when dried, and many cooks freeze fresh sprigs instead. Never keep fresh herbs or garlic covered in oil at room temperature: such low-oxygen conditions can let the bacterium that causes botulism grow. Refrigerate and use within days, or freeze.

Garden records, journals and plans

Memory is a poor gardener. Within two seasons you will forget which tomato did well, when the peas went in, and which jar came from which plant.

Write in pencil, which does not run when a page gets damp, and keep the notebook in a zip bag with a silica gel sachet through the monsoon. Photograph each season's layout, and once a year scan the notebook into your digital records. Protect those with the 3-2-1 rule: three copies, on two kinds of storage, one kept away from home, such as a cloud account or a relative's computer. A plain spreadsheet will still open in twenty years.

The Indian climate

• Monsoon humidity attacks every store in this band: seed absorbs moisture, tubers rot, tools rust, fertiliser cakes, and dried herbs and paper grow mould. Seal everything before the rains.
• Coastal salt air in Mumbai, Chennai and Kolkata speeds rust sharply. Oil tools monthly and keep them boxed.
• North Indian summer heat turns tin sheds, terrace store rooms and parked cars into ovens. Keep seed, bulbs and chemicals out of them.
• Dust storms push grit into jars, tool pivots and bags. Keep stores closed, and wipe and oil tools afterwards.
• Power cuts stop fridges and dehumidifiers. Sealed jars of dry seed ride them out; unsealed stores do not.
• Termites eat wooden handles, seed boxes and cardboard, and rodents and weevils get through bags. Lift stores onto metal shelves or bricks, and use glass, metal and lidded bins.
• Floods and cyclones reach ground-floor stores first. Keep seed, records and chemicals high up in sealed containers. If you can save only one thing, save the seed jars and the notebook.

Choose orange indicating silica gel, and avoid the older blue type that turns pink, which contains toxic cobalt chloride. To recharge gel, spread it on an oven tray at a low temperature, usually around 100–120°C, until the colour returns, following the maker's instructions. Cool it in a sealed jar, and keep it away from children. A digital thermo-hygrometer, roughly ₹200–700 (2026), shows what your storage corner really does across a year. To check one, seal it in a bag with a bottle cap of table salt dampened to a paste: after several hours it should read about 75 per cent.

A seasonal routine

Stage 15Climates and Seasons: the Monsoon, Kharif and Rabi

India runs from the humid tropics of Kerala to the cold desert of Ladakh, and no single gardening calendar fits it. What unites most of the country is that the year is shaped by rain and heat rather than by frost, and the rain comes with the monsoon.

The four seasons

The India Meteorological Department describes four seasons: winter in January and February, the hot season from March to May, the southwest monsoon from June to September, and the post-monsoon season from October to December.

The southwest monsoon usually reaches the Kerala coast around the start of June, spreads north and west, and normally covers the whole country by early to mid July. It starts withdrawing from the north-west from around mid-September. The Tamil Nadu coast is the exception, receiving much of its rain from the northeast monsoon between October and December. Dates shift from year to year, sometimes by weeks, so sow by the weather rather than the calendar.

Kharif, rabi and zaid

Kharif crops are sown with the rains, around June and July, and harvested in autumn: rice, maize, cotton, soybean, pigeon pea and millets. Rabi crops are sown after the rains, around October and November, and harvested in spring: wheat, mustard, chickpea, barley and lentil. A short zaid season in the hot months grows watermelon, muskmelon, cucumber and fodder where water allows.

The kitchen garden follows the same rhythm. Okra, gourds, cowpea, brinjal, chilli and amaranth suit kharif. Cauliflower, cabbage, peas, carrot, radish, spinach, methi, coriander, onion and garlic are rabi crops.

The northern winter garden

On the plains of Punjab, Haryana, Delhi, Uttar Pradesh and their neighbours, October to March is the finest season of the year. Red Delhi carrots, cauliflower, peas, turnips, sarson greens, methi, spinach and tomatoes crop in the mild sun, and calendula, sweet pea, nasturtium, pansy and petunia make a display summer cannot match. On clear nights in December and January, frost can touch low ground in the north-west plains, so cover tender plants such as tomatoes with cloth held clear of the leaves.

The same gardens struggle in May and June, when afternoons in the northern plains often pass 40°C. Many gardeners treat those weeks as a rest: they solarise beds, make compost, mulch deeply and wait for the rains.

Soils in brief

Deep alluvial soils cover the Indo-Gangetic plains. Heavy black soils, often called black cotton soils, cover much of the Deccan, swelling when wet and cracking deeply when dry. Red soils are widespread in the south and east, leached, acid laterites occur in high-rainfall areas, and desert soils are sandy and low in organic matter. Stage 2's tests apply to all of them.

Stage 16Balconies and Terraces: Gardening in Indian Cities

For most city gardeners in India, the garden is a balcony, a window ledge or a terrace. These spaces can be very productive, but they bring three problems a ground-level garden never has: weight, water getting into the building, and a water supply that has to be carried up.

Weight

A soil-based potting mix weighs very roughly 1–1.6 kg per litre when wet, and a soilless cocopeat and compost mix perhaps half that. A raised bed one metre square and 30 cm deep holds 300 litres, so wet soil-based mix puts several hundred kilograms on one square metre of slab before any plants, tank or people are added.

An ordinary residential slab or balcony is not designed to carry beds of wet soil across its area. Before building beds, placing large planters or adding a water tank, consult a structural engineer, and get permission from the building society or owner. Meanwhile:

• Use containers rather than beds, with lighter soilless mixes for large ones.
• Put the heaviest pots along parapet walls and near columns and beams, not mid-slab or at the outer edge of a cantilevered balcony.
• Never hang heavy planters outside a railing. A falling pot can kill someone below, and many societies forbid it.
• On high floors, secure tall plants and light pots against wind.

Waterproofing

A terrace is a roof, and constant damp is what makes roofs leak. Never put soil directly on the slab. Stand containers on stands, bricks or tiles so water drains freely and the surface beneath can dry. Before every monsoon, clear the drain outlets of soil and leaves; a blocked outlet can flood a terrace in one storm and add a great deal of weight. Built-in beds need an engineered system, typically a waterproof membrane, root barrier, drainage layer and filter fabric, installed by a specialist. Pull out peepal and banyan seedlings that sprout in parapet cracks while they are small, because their roots widen cracks year by year.

Water, heat and visitors

Drip kits with a battery timer, self-watering containers, mulch on every pot, grouped pots that shade each other, and larger containers all cut the burden of carrying water. Rainwater collected in covered drums is excellent, and water from washing vegetables and rice is fine. Air-conditioner condensate is low in salts and widely used on plants. The waste water from household reverse-osmosis purifiers is the opposite: concentrated in dissolved salts, it builds salt up in pots, so avoid it for containers, along with soapy grey water.

A concrete terrace soaks up heat all day and radiates it back at night. Raised pots, light-coloured containers, mulch and a 35–50 per cent shade net keep roots from cooking. Keep pigeons out with netting; where monkeys raid, only a mesh enclosure works. Empty saucers and trays regularly, because terraces breed dengue mosquitoes (see Stage 5).

Stage 17Native and Climate-Suited Plants

A native plant grew in a region before people brought plants from elsewhere. A naturalised plant came from elsewhere and now reproduces on its own, and an invasive plant has spread so aggressively that it crowds out native vegetation. The distinction matters because natives are adapted to local rain, heat and soil, and they feed the insects and birds that evolved with them.

Why natives earn their space

Many butterflies can raise caterpillars on only a few host plants. The plain tiger lays its eggs on aak, the shrub Calotropis. The common rose and crimson rose need Aristolochia vines. The lime butterfly and common Mormon use citrus and curry leaf. A garden of exotic ornamentals may feed adult butterflies and still give them nowhere to breed. Natives are often tougher too: a khejri in Rajasthan or a neem on the Deccan has met drought and poor soil for a very long time.

Plants to avoid, and where to find natives

Some plants still sold or self-sown are serious invasives. Lantana forms dense thickets in forests. Prosopis juliflora, vilayati kikar, has overrun dry land and city ridges. Water hyacinth chokes lakes and rivers. Never plant them, and never tip aquarium or pond plants into a drain or waterbody. Well-behaved introductions such as frangipani are reasonable choices; the test is whether a plant stays where you put it.

Many state forest departments run nurseries that sell native saplings cheaply, and a growing number of private nurseries specialise in native species. Seed gathered from a healthy local tree, with the owner's permission, is another route. Never collect in protected areas.

Stage 18The Indian Household Garden

Long before terrace gardening had a name, Indian homes kept plants for the kitchen, for worship and for medicine. The courtyard tulsi, the curry leaf by the back door, the jasmine for the evening and the drumstick tree beside a south Indian house make up a household garden that is centuries old and still very much alive.

Tulsi

Tulsi, or holy basil (Ocimum tenuiflorum), is worshipped in many Hindu homes, often grown in a raised masonry planter in the courtyard called a tulsi chaura or tulsi vrindavan. The Tulsi Vivah ceremony, the ritual marriage of the plant to Vishnu in the month of Kartik, is celebrated in many regions. Two types are common: the green-leaved form often called Rama tulsi, and the purple-tinged Krishna or Shyama tulsi.

Tulsi wants full sun, a free-draining mix and moderate water. Pinching out flower spikes keeps it leafy and extends its life, though many households let some set seed. It dislikes cold north Indian winter nights, so move a potted plant to a sunny, sheltered spot. Fallen seed usually comes up by itself in the monsoon.

Curry leaf and the kitchen plants

Curry leaf (Murraya koenigii) is native to India and essential to southern and western cooking. It grows slowly at first, hates waterlogged roots, and in alkaline soil or hard water often shows the yellow young leaves of iron shortage (see Stage 8). Its seed loses viability within weeks, so sow it fresh or buy a nursery plant. Cut whole sprigs rather than stripping leaves, which makes the plant branch.

Around it gathers a familiar list. Mint grows anywhere with water. Coriander is easy in the cool months and bolts in heat. Green chilli crops for months in a large pot, and lemon grows well in a half drum. Aloe vera survives neglect, and the thick, aromatic leaf sold as ajwain patta (Plectranthus amboinicus) roots from any cutting. Where the climate allows, households grow betel vine (Piper betle) for paan and the moringa or drumstick tree for pods and leaves. Hibiscus is offered in worship, mogra (Jasminum sambac) scents the evening, and marigold is strung into garlands.

Homestead gardens

In rural India the household garden is often much larger. The homegardens of Kerala are the most studied: small plots around the house layered like a forest, with coconut and arecanut above, pepper vines climbing them, banana and fruit trees below, and tubers, vegetables and herbs underfoot. Similar mixed homestead gardens surround village houses in Bengal and the North-East. Government programmes have also promoted nutrition gardens, often called poshan vatika, in schools and villages, putting the old household garden to a public-health purpose.

Stage 19Gardens in Indian History

India's garden history runs from groves protected for their gods, through Buddhist monastery gardens and temple flower gardens, to the water gardens of the Mughals and the botanic gardens of the colonial era.

Sacred groves and early gardens

Communities across India have long protected patches of forest dedicated to a deity, where cutting trees is forbidden. They go by many names: devrai in Maharashtra, kavu in Kerala, sarna in Jharkhand, oran in Rajasthan and law kyntang in Meghalaya. These sacred groves are among the oldest forms of conservation anywhere, and some shelter plants that have vanished from the land around them.

Early Buddhist tradition is full of gardens. According to the texts, the merchant Anathapindika bought the Jetavana grove at Shravasti for the Buddha, and it became a famous monastery. The Buddha's birth is placed in a garden at Lumbini. The edicts of the emperor Ashoka, in the third century BCE, record the planting of medicinal herbs and roadside shade trees. Sanskrit literature describes pleasure gardens attached to palaces, and a body of Sanskrit writing on the care of plants, known as vrikshayurveda, covers soils, seeds, propagation, watering and plant ailments.

Temple gardens

South Indian temples traditionally kept flower gardens, often called nandavanam, to supply flowers and leaves for worship, and inscriptions record gifts of land to maintain them. Many temples in Tamil Nadu are also associated with a particular sacred tree, the sthala vriksha.

The Mughal charbagh

The Mughals brought the Persian charbagh, the fourfold garden: a walled rectangle divided into four quarters by walkways and water channels, often with a pool or pavilion at the crossing. The form carried the imagery of paradise and brought running water, geometry and shade to the dry plains.

Babur, the first Mughal emperor, wrote in his memoirs of his dismay at the lack of flowing-water gardens in Hindustan, and set about making them at Agra. Humayun's Tomb in Delhi, completed in the later sixteenth century, set a great tomb at the centre of a charbagh and is often described as the first garden tomb of its kind in the subcontinent. At the Taj Mahal, begun under Shah Jahan in the seventeenth century, the tomb stands at the river end of the garden instead. In Kashmir the form climbed mountainsides. Shalimar Bagh and Nishat Bagh above Dal Lake in Srinagar, both of the seventeenth century, descend in terraces, with water sliding down carved stone chutes called chadar and falling past rows of wall niches, the chini khana, where lamps or flowers were set.

Botanic gardens and after

The East India Company founded a garden at Sibpur, near Calcutta, in 1787. It is now the Acharya Jagadish Chandra Bose Indian Botanic Garden in Howrah, famous for its Great Banyan. In Bengaluru, Lalbagh began as a garden under Hyder Ali, was extended by Tipu Sultan, and grew into a botanical garden whose Victorian glass house still hosts flower shows. Botanic gardens served science and empire at once, testing crops such as tea and cinchona, whose bark yields quinine. The era also left clipped lawns, beds of European annuals in the northern winter, and hill-station gardens planted to recall Britain.

The gardens of Rashtrapati Bhavan in New Delhi, designed by Edwin Lutyens, fused Mughal geometry with English planting. Long known as the Mughal Gardens, they were renamed Amrit Udyan in 2023. In Chandigarh, Nek Chand, a road inspector, spent years building a garden of sculptures from broken crockery, bangles and building waste, at first in secret on government land. The authorities eventually protected it instead of demolishing it, and the Rock Garden is now one of the city's best-loved places. Around the turn of the twenty-first century, the Aga Khan Trust for Culture worked with the Archaeological Survey of India to restore the gardens of Humayun's Tomb, bringing water back into its channels.

Stage 20Growing Together: Community Gardens and Urban Farming

Gardening in Indian cities has become a movement as well as a hobby. Terraces, society compounds, school grounds and unused corners are being turned over to vegetables, compost and native plants, often by groups rather than individuals.

City growers

Formal allotment systems of the British kind are rare in Indian cities, so community growing takes other forms. Housing societies turn common terraces into shared kitchen gardens. Schools keep nutrition gardens. Residents' associations run shared composting, and in several cities rules require large housing societies to process their wet waste on site, which has pushed composting into the mainstream. Bengaluru in particular has had active organic terrace-gardening groups and seed swaps for well over a decade, and similar networks exist in other large cities. Agriculture and horticulture departments in several states, Kerala prominent among them, have run schemes encouraging home and terrace vegetable growing, including subsidised grow-bag kits.

Urban farming has commercial forms too: rooftop farms supplying restaurants, microgreens and hydroponic lettuce grown inside city buildings, and market gardens on every city's edge. On the Yamuna floodplain in Delhi, farmers have grown vegetables for generations, a reminder that urban agriculture in India is not new.

Seed savers

As farmers moved to a small number of commercial seeds, local crop varieties began to disappear, and a seed-saving movement grew in response. Navdanya, the organisation founded by Vandana Shiva, runs community seed banks. The Beej Bachao Andolan, the Save the Seeds movement, grew among farmers in the Tehri Garhwal area of Uttarakhand in the 1980s. Community seed banks and seed festivals now operate in many states and welcome careful home seed savers. The Protection of Plant Varieties and Farmers' Rights Act, 2001 recognises farmers' rights to save, use, exchange and share seed, with restrictions on selling branded seed of protected varieties. Stages 13 and 14 describe how to keep that seed alive.

Where to get help

• Krishi Vigyan Kendras, the district farm science centres linked to the Indian Council of Agricultural Research, offer training, planting material and advice, and many can arrange soil testing.
• State agricultural and horticultural universities publish crop calendars and variety recommendations for their regions.
• ICAR institutes include the Indian Agricultural Research Institute in New Delhi, whose varieties carry the name Pusa, and the Indian Institute of Horticultural Research in Bengaluru.
• State horticulture departments run nurseries and flower shows.

Societies and shows

The Agri-Horticultural Society of India in Kolkata was founded in 1820 by William Carey, the Serampore missionary and botanist, and still holds shows. The Mysore Horticultural Society is based at Lalbagh in Bengaluru, where flower shows are held around Republic Day and Independence Day. The flower show at the Government Botanical Garden in Ooty, each May, draws visitors from across the south. Specialist societies for roses, orchids, bonsai and cacti meet in many cities, and their shows are the quickest way to meet growers who know a plant intimately.

Glossary

A

Aggregate — a crumb of soil particles bound together by humus, fungal threads and root secretions. [Stage 2]

Air layering — rooting a branch while still attached to the parent, by ringing the bark and wrapping the wound in moist moss; called gootee in India. [Stage 7]

Apical dominance — the suppression of lower buds by the growing tip of a shoot. [Stage 9]

B

Branch collar — the swollen ring where a branch joins the trunk; pruning cuts are made just outside it. [Stage 9]

Breed true — to produce offspring like the parent from seed. [Stage 6]

Bulb — a storage organ of layered, fleshy leaf bases, such as an onion. [Stage 13]

C

Cambium — the thin growing layer under the bark that must meet in a graft. [Stage 7]

Chadar — a carved, sloping stone chute over which water runs in a Mughal garden. [Stage 19]

Charbagh — the fourfold garden, divided into quarters by water channels and walkways. [Stage 19]

Cocopeat — the spongy material left after coir fibre is extracted from coconut husk. [Stage 5]

Corm — a solid, swollen stem base used for storage, such as a gladiolus. [Stage 13]

D

Damping off — the collapse of seedlings at soil level, caused by soil-borne fungi and similar organisms. [Stage 6]

F

F1 hybrid — the first-generation offspring of two distinct parent lines; its seed does not breed true. [Stage 6]

G

Greens and browns — nitrogen-rich and carbon-rich compost materials. [Stage 3]

H

Hardening off — gradually accustoming seedlings to outdoor sun and wind before planting out. [Stage 6]

Humus — the dark, stable organic material left when decay has run its course. [Stage 3]

I

Indicating silica gel — silica gel that changes colour when it has absorbed moisture. [Stage 14]

Integrated pest management (IPM) — managing pests by prevention and observation first, with chemicals last. [Stage 10]

Invasive — a plant from elsewhere that spreads aggressively and crowds out native vegetation. [Stage 17]

K

Kharif — the crop season sown with the monsoon and harvested in autumn. [Stage 15]

L

Loam — a soil with a balanced mixture of sand, silt and clay. [Stage 2]

M

Macronutrients — nitrogen, phosphorus and potassium, needed by plants in the largest amounts. [Stage 8]

Mulch — any layer spread over the soil to hold moisture, moderate temperature and suppress weeds. [Stage 4]

Mycorrhizae — partnerships between plant roots and soil fungi. [Stage 1]

N

Nandavanam — a temple flower garden supplying flowers for worship, especially in south India. [Stage 19]

Native plant — a plant that grew in a region before people brought plants from elsewhere. [Stage 17]

O

Open-pollinated — pollinated naturally, and able to breed true if kept from crossing. [Stage 6]

P

Perched water table — the saturated layer that collects at the bottom of a container. [Stage 5]

pH — a logarithmic measure of acidity and alkalinity from 0 to 14, with 7 neutral. [Stage 2]

Photosynthesis — the process by which leaves use light to make sugars from carbon dioxide and water. [Stage 1]

Pre-harvest interval — the days that must pass between spraying a pesticide and picking an edible crop. [Stage 10]

R

Rabi — the crop season sown after the monsoon and harvested in spring. [Stage 15]

Rhizome — a creeping underground stem, such as ginger or turmeric. [Stage 13]

Rootstock — the rooted lower part of a grafted plant. [Stage 7]

S

Sacred grove — a patch of forest protected by a community for a deity. [Stage 19]

Scion — the shoot of the chosen variety grafted onto a rootstock. [Stage 7]

Seed bank — the reserve of weed seeds waiting in the soil. [Stage 11]

Solarisation — heating moist soil under clear polythene to kill weed seeds and some diseases. [Stage 11]

Structure — the arrangement of soil particles into crumbs and pores. [Stage 2]

Succession sowing — sowing small batches at intervals for a steady harvest. [Stage 12]

T

Texture — the proportions of sand, silt and clay in a soil. [Stage 2]

Transpiration — the loss of water from leaves, which pulls water up through the plant. [Stage 1]

Tuber — a swollen underground stem or root used for storage, such as a potato. [Stage 13]

V

Vermicompost — organic matter that has passed through composting worms. [Stage 3]

Z

Zaid — the short hot-season crop period between rabi and kharif. [Stage 15]

Further Reading and Organisations

Gardening in general

• RHS Encyclopedia of Gardening, Royal Horticultural Society, edited by Christopher Brickell. A broad, reliable reference for technique.
• Christopher Lloyd, The Well-Tempered Garden. Opinionated and practical writing on growing plants well.
• Jeff Lowenfels and Wayne Lewis, Teaming with Microbes. The soil food web explained for gardeners.
• Masanobu Fukuoka, The One-Straw Revolution. The classic argument for farming with minimal intervention.
• Charles Dowding's books on no-dig growing.

Seeds

• Suzanne Ashworth, Seed to Seed. Crop-by-crop guidance on saving vegetable seed, including isolation and population sizes.

India

• M. S. Randhawa, Flowering Trees, National Book Trust, India.
• H. Santapau, Common Trees, National Book Trust, India.
• Pradip Krishen, Trees of Delhi and Jungle Trees of Central India.
• Indian Council of Agricultural Research, Handbook of Horticulture.
• Naveen Patnaik, The Garden of Life: An Introduction to the Healing Plants of India.
• Sylvia Crowe and Sheila Haywood, The Gardens of Mughul India.
• The Baburnama, translated by Wheeler M. Thackston.

Indian institutions

• Indian Council of Agricultural Research, including the Indian Agricultural Research Institute, New Delhi, and the Indian Institute of Horticultural Research, Bengaluru.
• Krishi Vigyan Kendras, the district farm science centres.
• State agricultural and horticultural universities, and state horticulture departments.
• National Horticulture Board.
• Botanical Survey of India.
• Central Insecticides Board and Registration Committee, which registers pesticides under the Insecticides Act, 1968.
• Acharya Jagadish Chandra Bose Indian Botanic Garden, Howrah; Lalbagh Botanical Garden, Bengaluru; Government Botanical Garden, Ooty.
• Agri-Horticultural Society of India, Kolkata; Mysore Horticultural Society, Bengaluru.
• Navdanya; Beej Bachao Andolan.
• Archaeological Survey of India; Aga Khan Trust for Culture.

International bodies

• Royal Horticultural Society, United Kingdom.
• Royal Botanic Gardens, Kew.
• Garden Organic, United Kingdom, and its Heritage Seed Library.
• Seed Savers Exchange, United States.

Image Sourcing Sheet