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Herb guide 7 min read

How to Grow Coriander (Cilantro) at Home Without It Bolting

Coriander is one of the most rewarding herbs to grow at home, fast, fragrant, and used in kitchens all over the world. There is just one catch every beginner needs to know: coriander loves to “bolt,” shooting up flowers and going to seed the moment it gets hot or stressed. Get a few things right, a pot with drainage, a cooler spot, steady water, and regular sowing, and you will have fresh leaves for months.

A coriander plant growing in a terracotta pot
Coriander asks for cooler light and steady water more than it asks for sun.

Coriander or cilantro? A quick note on names

They are the same plant. In much of the world the leaves are called coriander or dhania patta, while in North America the leaves are called cilantro and only the dried seeds are called coriander. Whatever you call it, you grow it the same way. In this guide, coriander means the fresh, leafy herb.

Why coriander is a great plant to grow

  • It is fast. Seeds sprout in a week or two and you are picking leaves within a month.
  • It regrows. Cut the outer leaves and the plant keeps pushing out more from the center.
  • You will use it daily. Curries, salsas, chutneys, garnishes, dals, it goes on almost everything.
  • It fits anywhere. A window box, a balcony pot, or a single deep pot on the counter is plenty.

What you need to grow coriander

You do not need anything fancy:

  1. A pot with a drainage hole, and a slightly deep one. Coriander grows a long taproot and dislikes being moved, so a deeper pot keeps it happy.
  2. Well-draining potting soil, a regular potting mix is fine. Avoid heavy garden soil that stays soggy.
  3. Coriander seeds, from a seed packet, or whole dhania seeds from your kitchen (see the tip below).
  4. A cooler, part-sunny spot, this is the secret most beginners miss, more on it below.

How to sow coriander from seed

Coriander is best grown straight from seed in its final pot. It hates being transplanted, and moving it is one of the fastest ways to make it bolt.

  1. Each round coriander “seed” is actually a husk holding two seeds. Gently crush it into halves between your fingers to help it sprout faster.
  2. Soak the crushed seeds in water overnight. This softens the husk and speeds up germination.
  3. Fill your pot with moist potting soil. Scatter the seeds and cover them with about 1 cm of soil.
  4. Keep the soil lightly moist and somewhere warm but not hot. Sprouts appear in 7–14 days.
  5. Once seedlings are a few centimetres tall, thin them so they sit about 5 cm apart and have room to bush out.
Tip: The whole coriander (dhania) seeds in your spice jar will grow, as long as they are raw and not roasted or ground. Crush, soak, and sow them just the same.

Light: cooler and shadier than you think

This is where coriander is the opposite of basil. Basil wants all the sun it can get; coriander wants light but not heat. Aim for 4–6 hours of gentle light, ideally morning sun with shade in the hot afternoon. A spot that bakes in full afternoon sun will push it to bolt within weeks. In cool weather it is happy in more sun; in summer, the shadier and cooler the better.

Watering: keep it steady

Coriander likes soil that stays evenly moist, never bone dry and never waterlogged. Letting it dry out is a classic trigger for bolting, so it is a little thirstier than basil. Use the finger test:

  • Push a finger about 3 cm into the soil.
  • Damp? Wait.
  • Dry? Water at the base until a little drains from the bottom.

On hot, windy days a small pot dries out fast, so check daily. Steady moisture keeps the plant calm and leafy instead of rushing to seed.

The big one: how to stop coriander bolting

“Bolting” is when the plant stops making leaves, shoots up a tall flower stalk, and sets seed. The leaves turn feathery and taste bitter. Heat, long summer days, dry soil, and transplant shock all trigger it. You cannot stop it forever, but you can delay it a lot:

  • Keep it cool and part-shaded. Heat is the number one trigger. An east-facing window or a shaded balcony spot buys you weeks.
  • Never let it dry out. Steady watering keeps the plant from panicking into seed mode.
  • Harvest often. Regular cutting tells the plant to keep making leaves.
  • Sow a fresh batch every 2–3 weeks. This is the real secret to year-round coriander. As one pot bolts, the next is ready. This is called “successive sowing.”
  • Look for slow-bolt varieties. Seed packets labelled “slow bolt” or “leaf coriander” are bred to stay leafy longer.
Watch out: Once you see a flower stalk shooting up, the leaves are on their way out. You can let it flower and collect the seeds for cooking and replanting, but for more leaves, start a fresh pot now.

How to harvest for more leaves

Pick coriander little and often. Snip the outer, older stems at the base, leaving the young center leaves to keep growing. Never strip the whole plant at once. As long as you harvest the outside and the weather stays cool, one pot keeps producing for weeks before it finally bolts.

Common coriander problems (and quick fixes)

  • Bolting to flower far too soon → too hot, too dry, or transplanted. Move it cooler and shadier, water steadily, and sow fresh seed. See the section above.
  • Leggy, pale seedlings → not enough light. Give it a brighter (but still cool) spot and thin out crowded seedlings.
  • Yellowing leaves → usually soggy soil. Ease off watering and check the drainage hole. Our guide on why leaves turn yellow covers every cause.
  • Poor or patchy germination → old seed, or husks not crushed. Use fresh seed, crush and soak it, and keep the soil evenly moist while it sprouts.

Growing coriander indoors

No balcony? Coriander does well indoors as long as it gets light and stays cool. Put it on a bright windowsill that does not overheat, keep it away from radiators and hot glass, and never let the pot sit in a saucer of water. Indoors it dries out more slowly, so lean on the finger test rather than a fixed schedule, and remember: a cooler indoor corner often grows better coriander than a hot, sunny sill.

Coriander pairs beautifully with another beginner-proof herb: see our guide to growing mint at home. New to all of this? Start with our complete beginner’s guide to growing food at home, and if you are short on space, our indoor staircase garden guide shows how to grow herbs like this on your stairs.

Want a plant that tells you exactly what to do each day? UrbanLeaf gives your coriander one simple daily task, including weather-smart watering based on your local forecast, so you never have to guess. It is built to help complete beginners actually keep their plants alive. 🌿

Frequently asked questions

How long does coriander take to grow?

From seed you'll see sprouts in about 7–14 days, and you can start picking leaves in around 3–4 weeks. It grows fast, which is why sowing a little every few weeks keeps a steady supply.

Why does my coriander keep flowering and bolting so fast?

Heat, long summer days, and stress (dry soil or being transplanted) all push coriander to flower and set seed. Keep it in a cooler, part-shaded spot, water it steadily, harvest often, and sow fresh seed every 2–3 weeks.

How much sun does coriander need?

Aim for 4–6 hours of light, but unlike basil it prefers cooler conditions and welcomes afternoon shade in hot weather. Too much heat and sun makes it bolt to seed far sooner.

Can I grow coriander from the whole seeds in my kitchen?

Yes. Whole coriander (dhania) seeds are the same plant. Gently crush the round husks into halves, soak them overnight, and sow. Just avoid pre-ground or roasted spice, which will not sprout.