How to Grow Coriander (Dhania) at Home
Fresh dhania on tap is one of the easiest wins in a kitchen garden — here is how to grow it in a pot on a windowsill or balcony.
Coriander — dhania — is the herb most Indian kitchens run through fastest, and buying a limp bunch every few days gets old. The good news is that it is one of the simplest things to grow at home. A single pot on a balcony or windowsill can keep a small household in fresh leaves, and the flavour of just-cut coriander is sharper and greener than anything that has sat in a fridge drawer. This is a proper container-friendly crop, so you do not need a garden.
What you will need
- A pot or trough at least 15 cm (6 inches) deep with drainage holes — wider is better than deeper, since coriander is shallow-rooted once established.
- Whole coriander seeds. Ordinary dhania from the kitchen jar works, as long as it is the plain whole seed and not roasted or ground.
- Loose potting mix, ideally blended with a little compost so it holds moisture but drains freely.
- A sunny-to-part-shade spot with four to six hours of light.
How to grow coriander step by step
- Split the seed. Roll the round seeds gently under your palm or a rolling pin until most crack in two. Each shell holds two seeds, and splitting them gives faster, more even sprouting.
- Soak overnight. Drop the cracked seed in a bowl of water and leave it for six to eight hours. This softens the shell and gives you a head start.
- Fill and level the pot. Add potting mix to about 2 cm below the rim and firm it lightly so there are no big air pockets.
- Sow. Scatter the seeds fairly thickly across the surface — coriander is grown as a cut-and-come-again leaf crop, so you want a dense stand rather than a few spaced plants. Cover with about 1 cm of mix.
- Water gently. Use a light sprinkle or a bottle with holes in the cap so you do not wash the seeds out. Keep the surface just damp until the shoots appear.
- Wait for germination. Shoots usually break through in 7 to 14 days. Keep the pot out of scorching midday sun during this stage.
- Thin if crowded. If the seedlings come up shoulder to shoulder, snip a few at soil level so the rest have room and air.
Watering and care
Coriander likes soil that stays evenly moist but never waterlogged. In warm weather that often means a light watering every day; in cooler months, every second or third day. Push a finger into the top couple of centimetres — if it feels dry, water. If the pot sits in a saucer, tip out standing water so the roots do not sit wet.
The single biggest problem people hit is bolting: the plant shoots up a tall stalk and stops making leaves. Heat and long daylight trigger it. You can slow it down by keeping the pot somewhere it gets morning sun and afternoon shade, watering consistently, and cutting the leaves regularly so the plant stays in leaf-producing mode.
When and how to harvest
Start cutting once the plants are 10 to 15 cm tall, usually about five to six weeks from sowing. Snip the outer stems with scissors, taking no more than a third of the plant at a time, and always cut above the lowest set of leaves so it can regrow. Cutting little and often actually keeps it productive for longer than letting it grow tall and stripping it in one go.
A quick sowing calendar
| Stage | Roughly how long | What to do |
|---|---|---|
| Soak & sow | Day 0 | Crack, soak, scatter, cover lightly |
| Germination | 7–14 days | Keep soil damp, out of harsh sun |
| Growing on | 2–4 weeks | Water steadily, thin crowded seedlings |
| First harvest | 5–6 weeks | Snip outer stems, leave the base |
| Re-sow batch | Every 2–3 weeks | Start a new pot for a steady supply |
Keeping a steady supply
Because coriander eventually bolts no matter what, the trick to never running out is succession sowing: start a small new batch every couple of weeks. Keep two or three pots at different stages and you will always have one ready to cut while another is coming up. When a plant finally does flower, let it — the seeds that follow are next year’s dhania, and you can dry and store them.
Feeding an established pot
Coriander grown for leaves is not a hungry plant, but a pot of potting mix runs out of goodness after a few weeks of cutting. If the colour starts to pale and growth slows, mix a little compost into the top layer or water with a weak, diluted feed once a fortnight. Go gently — pushing it too hard with strong feed makes soft, floppy growth and can hurry it towards flowering rather than keeping it leafy. Steady and modest beats fast and forced with this herb.
Common problems and quick fixes
Most coriander trouble comes down to three things, and all are easy to read once you know the signs. Yellowing lower leaves usually mean the pot is either too wet or has run short on feed — ease off the watering first, then feed if it does not recover. Thin, stretched, pale seedlings that flop over are reaching for light, so move the pot somewhere brighter. And a plant that suddenly shoots up a central stalk with feathery leaves is bolting; that is heat and age doing their work, and the answer is to keep cutting, keep it cool, and have a fresh pot already coming up behind it.
Growing coriander indoors
If you have no balcony, a bright windowsill will still keep you in dhania for much of the year. Pick your sunniest window — east or south facing is ideal — and use a wider trough so several plants share the light. Turn the pot a quarter every few days so the seedlings grow upright instead of all leaning one way. Indoors the air is often drier, so keep a closer eye on the surface of the soil and give it a light water whenever the top feels dry to the touch.
Saving your own seed
Letting a plant flower is not a failure — it is a free supply of next season’s seed. Once the small white flowers fade, green seed heads form and slowly turn tan and dry on the plant. When they rattle and feel papery, snip the heads into a paper bag, rub them free of the stalks, and store the round seeds somewhere cool and dry in a labelled jar. You can sow them again next season, or split and use them in the kitchen. A single bolted plant can hand you enough seed for several future pots.
Once you have coriander sorted, the same pot-and-windowsill routine works for other herbs. Mint is the obvious next step, so have a look at how to grow mint in pots, and if you want to build out a proper little growing setup, our beginner’s guide to starting a kitchen garden ties it all together. You will find more of these in the green living section.
Frequently asked questions
How long does coriander take to grow?
You will usually see the first shoots in about 7 to 14 days, and you can start snipping leaves roughly three to four weeks after that. From sowing to a usable bunch is around five to six weeks, a little longer in cold weather.
Should I crush the coriander seed before sowing?
Each round dhania seed is actually two seeds in one shell. Gently pressing it so it splits into halves helps it sprout faster and more evenly. Roll the seeds under your palm or press lightly with a rolling pin — you want them cracked, not powdered.
Why does my coriander flower so quickly?
Coriander sends up flower stalks (called bolting) in heat and long days. Sow in cooler months where you can, keep it out of harsh afternoon sun, water regularly, and cut the leaves often. Once it bolts the leaves turn feathery, but you can let it flower and collect the seeds.
Can I grow coriander indoors on a windowsill?
Yes, as long as the spot gets four to six hours of light. An east or south-facing window works well. Use a pot at least 15 cm deep, keep the soil just moist, and turn the pot every few days so the plants grow straight rather than leaning to the light.
Do I need to transplant coriander seedlings?
It is better not to. Coriander has a long taproot and dislikes being moved, so sow the seeds where the plant will stay. If seedlings come up too crowded, thin them by snipping the weakest at soil level rather than pulling them out.
How do I get a continuous supply of coriander?
Sow a fresh small batch every two to three weeks in a separate pot or a new corner of the same one. That way, as one lot bolts or gets cut hard, the next is coming up behind it and you are rarely without leaves.