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Why is my coriander dying? (and how to fix it)
Your dhania keeps dying and you are about to give up. Don’t. It’s almost always one of four boringly common mistakes — and every one of them is dead easy to dodge.
Right, let’s settle this. Coriander (dhania) dies on most beginners for one of four wonderfully common reasons: sown too thick, bolted in the heat, drowned by overwatering, or starved of light. Good news — not one of them is a “you don’t have a green thumb” problem. They’re all just tells, and once you can read them, coriander becomes almost embarrassingly easy.
The biggest villain is sowing too dense. We get it — the seeds are tiny and you want a jungle. But crowded seedlings can’t breathe, fight over everything, and damp off together. Sow thin, about 4–5 mm deep, and keep the rest of the packet for next time.
Villain number two is heat. Warm weather makes coriander bolt — up goes a flower stalk, out goes the flavour, and the plant calls it a career. Grow it in the cool months instead and it stays leafy for weeks. This is a timing problem, not an effort problem, which is the best kind of problem to have.
That leaves water and light. Coriander wants steady moisture (not a paddy field) and a genuine 4–5 hours of light, which is exactly why so many hopeful shaded-balcony sowings end in leggy disappointment. Nail those four things and you’ll be snipping fresh dhania faster than you can finish saying “but I always kill it”.
Crack the seed open first
Plot twist: a coriander “seed” is actually two seeds hiding inside one round husk, playing hard to get. Roll the seeds in a handkerchief and press gently to split that husk open. Do this and they sprout within a week, instead of sulking in the soil for three.
Sow thin, sow shallow
About 4–5 mm deep, and please resist tipping the whole packet into one pot. Overcrowding is coriander’s number-one cause of death: jammed-in seedlings can’t breathe and rot in a sad little tangle. Thin always beats thick.
Grow it in the cool season
Sow roughly October–February. Hit it with real heat and coriander bolts — it shoots up a flower stalk, the leaves go sparse and bitter, and it basically retires in two to three weeks. Cool weather keeps it leafy and generous for ages.
Water little and often
Keep the soil moist, never a swamp. A light daily drink is perfect; ease off in the monsoon and winter. Soggy roots are how a lot of healthy-looking coriander quietly says goodbye.
Give it some light
Four to five hours, minimum. A gloomy, shaded balcony gives you pale, leggy plants that flop over dramatically. Park it in the brightest spot you’ve got.
Hunt down a slow-bolting variety
If you can get your hands on a slow-bolting variety, grab it. It stays leafy longer before running to flower, which gives you a far better shot at a proper crop in warm, humid regions like coastal Konkan. Less drama, more dhania.
Frequently asked questions
Why is my coriander dying so quickly?
Usually heat. Coriander bolts and fades within two to three weeks if it’s sown in warm weather. Sow it in the cool season (roughly October–February) and it stays leafy for much longer.
How long does coriander take to germinate?
About a week if you first crack the round husk — roll the seeds in a cloth and press gently to split them. Left whole, they can dawdle for two to three weeks.
How deep should I sow coriander seeds?
About 4–5 mm deep, no more. Sowing too deep, or far too densely, is a classic reason seedlings never make it.
Can I grow coriander in summer in India?
You can, but it’ll likely bolt within two to three weeks in the heat. For a long, leafy harvest, grow it in the cool months instead.
Should I water coriander every day?
A light daily watering suits it — moist soil, never soggy. Cut back during the monsoon and in cool winter weather.
Get open-pollinated coriander (dhania) seed at The Seed Store →