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You can collect cilantro seeds by letting your cilantro plants bolt and flower, then harvesting the dried seed heads before they shatter.
It’s one of the easiest seed-saving projects you can take on, even if you’re a total beginner.
Those little round seeds are actually coriander, and you can use them in the kitchen or save them to plant next season.
When you collect cilantro seeds the right way, you’ll never have to buy them again.
In this post, we’ll walk through how to collect cilantro seeds, when to harvest them, and how to store them so they stay viable.
Let’s dig in.
How to Collect Cilantro Seeds
Learning how to collect cilantro seeds starts with understanding the plant’s natural life cycle.
Cilantro is a cool-season herb that bolts quickly once the weather warms up.
Here’s how the whole process works.
1. Let Your Cilantro Bolt and Flower
If you want to collect cilantro seeds, you first need to let your cilantro go to seed.
That means resisting the urge to pinch off the flower stalks.
When cilantro bolts, it sends up a tall stem topped with delicate white or pinkish flowers.
Those flowers are the first step in how to collect cilantro seeds.
Bees and other pollinators love them, so you’re also doing your garden a favor.
2. Wait for the Flowers to Turn Into Seed Heads
After the flowers fade, small green seed pods start to form.
These pods will eventually become the cilantro seeds you’re after.
At this stage, you can clearly see how cilantro seeds develop right on the plant.
Don’t rush this part, because the seeds need time to mature.
If you pick too early, your cilantro seeds won’t be viable for planting later.
3. Watch for the Color Change
The key signal for when to collect cilantro seeds is color.
Green seeds will slowly turn tan or light brown as they ripen.
Once most of the seeds on a stalk have changed color, it’s almost time to harvest.
This color shift tells you the cilantro seeds are mature and ready.
When to Collect Cilantro Seeds
Timing is everything when you collect cilantro seeds, because they don’t wait around for you.
Here’s how to nail the timing.
1. Harvest Before the Seeds Shatter
The biggest mistake people make when they collect cilantro seeds is waiting too long.
Once the seeds are fully brown and dry, they start dropping to the ground on their own.
This is called shattering, and it can cost you most of your harvest.
The trick is to collect cilantro seeds when they’re mostly brown but before they scatter.
2. Check the Seed Heads Every Few Days
Start checking your plants daily once the seeds begin to turn brown.
Gently rub a seed head between your fingers.
If the cilantro seeds fall out easily, they’re ready to collect.
If they still feel firmly attached, give them another day or two.
3. Cut the Stalks in the Morning
The best time to collect cilantro seeds is in the morning after the dew has dried.
Grab a pair of scissors or pruning shears and snip the seed heads off the plant.
Leave a few inches of stem attached so you have something to hold.
Drop the stalks into a paper bag or a bucket as you go.
How to Collect Cilantro Seeds Step by Step
Now that you know when to harvest, here’s the actual process for how to collect cilantro seeds.
1. Snip the Seed Heads Into a Bag
Hold a paper bag under each seed head and snip it off so nothing falls to the ground.
This method makes it easy to collect cilantro seeds without losing any.
Paper bags work better than plastic because they let moisture escape.
2. Let the Seed Heads Dry Fully
Once you’ve cut your seed heads, spread them out in a single layer on a tray or screen.
Leave them in a cool, dry spot with good airflow for one to two weeks.
This drying step is crucial if you plan to collect cilantro seeds for planting.
Seeds that aren’t fully dry will mold in storage.
3. Rub the Seeds Loose
After the seed heads are completely dry, gently rub them between your hands over a bowl.
The cilantro seeds will pop right out of their husks.
You can also shake the bag you stored them in, since many seeds will fall loose on their own.
This is the most satisfying part of learning how to collect cilantro seeds.
4. Separate the Seeds From the Chaff
Pick out the larger pieces of stem and husk by hand.
For smaller bits, gently blow across the bowl or use a fine sieve.
The lighter chaff will blow away while the heavier cilantro seeds stay put.
What’s left is a bowl of clean, ready-to-use seeds.
Storing the Cilantro Seeds You Collect
Once you collect cilantro seeds, proper storage keeps them fresh for cooking and viable for planting.
Here’s how to do it right.
1. Use an Airtight Container
Transfer your dried cilantro seeds into a glass jar or airtight container.
Add a small packet of silica gel if you have one to absorb any leftover moisture.
Label the jar with the date so you know how fresh your cilantro seeds are.
2. Store in a Cool, Dark Place
Keep your jar in a cupboard away from heat and light.
Cilantro seeds stored this way stay good for cooking for about a year.
For planting, they can remain viable for two to three years.
If you want to collect cilantro seeds and save them long-term, the fridge works great too.
3. Use or Replant When Ready
You can grind your cilantro seeds fresh for curries, pickles, and marinades.
Or sow them directly in the garden when the weather cools down.
Either way, knowing how to collect cilantro seeds means you get two harvests from one plant.
So, How Do You Collect Cilantro Seeds?
You collect cilantro seeds by letting your plants bolt, waiting for the seed heads to turn brown, and harvesting them before they shatter.
Once the seeds are dry, you simply rub them loose, separate them from the chaff, and store them in an airtight container.
It’s a simple process that saves you money and keeps your garden growing season after season.
Now that you know how to collect cilantro seeds, you’ll never look at a bolting cilantro plant the same way again.