How To Collect Cilantro Seeds

You can collect cilantro seeds from your cilantro plants once the flowers fade and the seed heads turn brown.
 
It’s one of the easiest seed-saving projects you can do in your garden.
 
If you’ve ever wondered how to collect cilantro seeds, the good news is that you don’t need special tools or a lot of experience.
 
Cilantro seeds, also known as coriander, are basically the same thing you sprinkle into your spice grinder or drop into a pot of soup.
 
In this post, we’ll walk through exactly how to collect cilantro seeds, when to harvest them, and how to store them so they stay viable for next season.
 
Let’s dig in.
 

How to Collect Cilantro Seeds: Step by Step

Knowing how to collect cilantro seeds comes down to timing and a little patience.
 
Here’s the process broken down so you can gather a full harvest without losing seeds to the wind.
 

1. Let Your Cilantro Bolt and Flower

Cilantro is a cool-season herb, and when the weather warms up, it naturally bolts.
 
Bolting means the plant shoots up a tall stem and produces small white or pale pink flowers.
 
Those flowers are the first sign that seeds are on the way.
 
Don’t cut the flowers off if your goal is to collect cilantro seeds.
 
Let them bloom and get pollinated by bees and other beneficial insects.
 

2. Watch for the Seed Heads to Turn Brown

After the flowers fade, small green seed pods form at the top of the plant.
 
These pods are where your cilantro seeds develop.
 
At first, they’re green and tightly packed.
 
As they mature, they shift from green to tan and finally to a light brown color.
 
That browning is your cue that the seeds are almost ready.
 
If you pick them too early, the seeds won’t be fully developed.
 
If you wait too long, they’ll drop to the ground and you’ll lose them.
 

3. Harvest the Seeds Before They Drop

The trick to collect cilantro seeds successfully is catching them at the right moment.
 
When most of the seed heads have turned brown but haven’t split open yet, it’s time to act.
 
Cut the stems just below the seed heads with a pair of clean scissors or pruners.
 
Hold a paper bag or a bowl underneath as you cut so you don’t lose any seeds.
 
You can also gently bend the stem over the bag and snip it.
 
If some seeds fall while you’re cutting, that’s fine, just let them land in the bag.
 

4. Dry the Seed Heads Completely

Once you’ve cut the stems, you need to dry the seed heads before you can separate the seeds.
 
Tie the stems together in small bunches and hang them upside down in a cool, dry, well-ventilated spot.
 
You can also lay them flat on a screen or a paper towel.
 
Let them dry for about one to two weeks.
 
The seeds are ready when the heads feel dry and brittle and the seeds rattle inside.
 

5. Separate the Seeds from the Chaff

After drying, it’s time to release the cilantro seeds from their pods.
 
Hold a bunch over a bowl or a large sheet of paper and rub the seed heads between your fingers.
 
The dried pods will crumble and the round, tan seeds will fall out.
 
You can also put the dried heads in a paper bag and shake it vigorously.
 
Pick out any large stems or debris by hand.
 
For a cleaner batch, pour the seeds from one bowl to another in front of a fan, letting the light chaff blow away.
 

When to Collect Cilantro Seeds

Timing is everything when you want to collect cilantro seeds.
 
The best time is late summer or early fall, depending on your climate.
 
In hot regions, cilantro bolts quickly, so you might be collecting seeds by midsummer.
 
In cooler areas, the plant may hold on longer and you’ll harvest seeds closer to fall.
 
The key is to watch the plant, not the calendar.
 
Once the seed heads turn brown, you have a window of a few days to a week before they shatter and drop.
 
Check your plants every day during that period.
 
If rain is in the forecast, harvest early and dry the stems indoors.
 

Tips for Storing Cilantro Seeds

After you collect cilantro seeds, proper storage keeps them fresh for planting or cooking.
 
Make sure the seeds are completely dry before storing them.
 
Any moisture left in the seeds can cause mold during storage.
 
Place the dried seeds in a paper envelope or a small glass jar with a tight-fitting lid.
 
Label the container with the date and the variety if you know it.
 
Store the seeds in a cool, dark, dry place like a pantry or a cupboard.
 
For long-term storage, you can keep them in the refrigerator in an airtight container.
 
Cilantro seeds stay viable for planting for about two to three years when stored properly.
 
If you plan to use them for cooking, they’ll keep their flavor for about a year.
 
You can plant the seeds whole or grind them fresh for recipes.
 

So, How to Collect Cilantro Seeds?

To collect cilantro seeds, let your cilantro bolt, wait for the seed heads to turn brown, cut the stems, dry them, and separate the seeds from the chaff.
 
It’s a simple process that gives you free seeds for next season’s garden or a fresh supply of coriander for your spice rack.
 
The best part is that you only need one or two plants to end up with more seeds than you can use.
 
So next time your cilantro starts to flower, don’t pull it out.
 
Let it go to seed and try collecting cilantro seeds yourself.
 
You’ll be glad you did.