# How and Why to Soak Cilantro Seeds Before Planting

- Link: https://lifeandwork.blog/gardening-soaking-cilantro-seeds-before-planting/
- Published: 2026-07-05T18:59:20-05:00
- Author: Bert Swope

If you’ve ever tried growing cilantro and had trouble getting the seeds to sprout,
you’re not alone. Cilantro seeds can be fussy. They take time to germinate, and 
without the right conditions, they may not sprout at all. One simple trick that 
can help is soaking the seeds before planting. It sounds basic, but it can make 
a big difference.

## What Are Cilantro Seeds, Really?

First, let’s clear something up. When you buy cilantro seeds, you’re actually getting
something called a “coriander seed.” That’s because cilantro and coriander come 
from the same plant. The leafy part is called cilantro, and the dried seed is coriander.
Each coriander seed is a husk that holds two seeds inside. It’s tough and round,
and that outer shell slows down germination.

## Why Soak Cilantro Seeds?

Soaking softens the seed husk. That’s the main reason to do it. When the husk is
softer, water can get inside more easily. This helps the seeds sprout faster. It
also improves your chances of success, especially if you’re planting in soil that
dries out quickly or if the weather isn’t ideal.

You don’t _have_ to soak cilantro seeds. They will still grow without it. But soaking
gives them a head start, especially in home gardens where conditions aren’t always
perfect.

## How to Soak the Seeds

It’s simple. Here’s what to do:

 1. **Crush the Husks**: Gently press the seeds with the flat side of a knife or roll
    them under a bottle or glass jar. You don’t need to crush them completely. Just
    break the outer husk to expose the two seeds inside.
 2. **Soak in Water**: Put the cracked seeds in a glass of clean water. Let them sit
    for 12 to 24 hours. Some people go longer, even up to 48 hours. Just don’t go past
    two days or you risk mold or rot.
 3. **Drain and Dry**: After soaking, drain the water and let the seeds dry on a paper
    towel for a few hours. They don’t need to be bone dry, just not dripping wet.

Now they’re ready to plant.

## When to Plant Soaked Seeds

Timing matters. Cilantro grows best in cooler weather. Late spring or early fall
are ideal times in most regions. If you plant in hot weather, the plant may bolt(
go to seed) before you get a decent harvest.

Wait until after your last frost date if you’re planting in spring. Aim for soil
temperatures between 60 and 70 degrees Fahrenheit. If the soil is too cold, the 
seeds will sit there. Too hot, and they might not grow at all.

## How to Plant Soaked Seeds

 1. **Prepare the Soil**: Cilantro likes well-drained soil. Loosen it with a garden
    fork or trowel. Mix in some compost if your soil is dry or sandy.
 2. **Plant the Seeds**: Sow them about 1/2 inch deep and 1 to 2 inches apart. You 
    can plant in rows or scatter them over a patch. If you’re using containers, choose
    one that’s at least 8 inches deep.
 3. **Keep It Moist**: Water gently after planting. The soil should stay damp but not
    soggy. If it dries out too much, the seeds may stop growing.
 4. **Watch for Germination**: Cilantro seeds usually take 7 to 21 days to sprout. 
    This depends on the weather, soil, and how fresh the seeds are. If you soaked the
    seeds and the soil stays moist, you’ll likely see sprouts in about 10 days.

![Soaking Cilantro Seeds Infographic](https://i0.wp.com/lifeandwork.blog/wp-content/
uploads/Soaking-Cilantro-Seeds-Infographic.png?resize=790%2C1185&ssl=1)

Soaking Cilantro Seeds Infographic

## Seedling Care

Once the seedlings pop up, give them some space. Thin them to about 6 to 10 inches
apart. This gives each plant room to grow a full leafy bunch. If they’re too close,
they’ll compete for light and nutrients.

Cilantro doesn’t like to be moved. It’s best to plant it where you want it to grow.
If you must transplant, do it very gently and as early as possible.

Water regularly, especially during dry spells. But don’t drown the plants. Too much
water can rot the roots.

## How to Know It’s Working

You’ll know soaking helped if your seeds germinate more evenly and quickly. Instead
of a few scattered sprouts, you’ll get a more uniform patch of green. You might 
also notice that the seedlings look stronger and grow faster in the early stages.

## What Happens If You Don’t Soak Them?

If you skip soaking, your seeds might still grow, but they’ll take longer. You may
also see uneven growth: some seeds will sprout early, others late, and some not 
at all. That means more time waiting and less predictability.

In cooler or drier areas, soaking becomes even more useful. It gives the seeds a
jumpstart that they may not get otherwise.

## Growing in Containers

Cilantro grows well in pots. Just make sure the pot has good drainage. Fill it with
potting mix that holds moisture but drains well. Plant soaked seeds the same way
you would in the ground.

Keep the pot in a sunny spot, but not in intense midday sun. Morning or late afternoon
sun is ideal. Keep the soil evenly moist. Container soil dries out faster than ground
soil, so check it often.

## Harvesting Cilantro

You can start harvesting leaves when the plant is about 6 inches tall. Pick the 
outer leaves first and let the center keep growing. You’ll get several cuttings 
this way.

If the plant starts to flower, it’s going to seed. You can still eat the leaves,
but they may taste more bitter. Some gardeners let the plant go to seed on purpose
so they can collect coriander seeds to plant again or use in cooking.

## Other Tips for Success

 * **Use fresh seeds**: Older seeds may not germinate well.
 * **Don’t soak too long**: Over-soaking leads to mushy seeds that won’t grow.
 * **Label your planting area**: Especially if you have multiple herbs growing.
 * **Protect from pests**: Slugs and snails like cilantro seedlings. Keep an eye
   out.

## Final Thoughts

Soaking cilantro seeds before planting is a small step that can make a big difference.
It helps with germination, speeds up the process, and leads to a more even, reliable
crop. It’s not mandatory, but it’s worth the extra day of planning.

With a little prep, some patience, and the right conditions, you’ll have fresh cilantro
growing in your garden or on your windowsill in no time. Whether you’re tossing 
it into salsa, sprinkling it on soup, or blending it into chutney, homegrown cilantro
always tastes better.

And once you get the hang of it, you’ll never want to go back to store-bought herbs
again.

Soaking Cilantro Seeds in Rainwater

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