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The best time to pick seeds from a cilantro plant is when the seed heads turn brown and dry on the plant.
If you pick seeds from cilantro too early, they won’t be viable and won’t germinate well.
So, when to pick seeds from cilantro plant?
You pick seeds from cilantro plant after the flowers fade and the plant starts to bolt and set seed.
In this post, we’ll walk through exactly when to pick seeds from cilantro plant, how to tell the seeds are ready, and how to harvest and store them so you get the best results.
Let’s dive in.
When to Pick Seeds From Cilantro Plant
When to pick seeds from cilantro plant comes down to watching the seed heads closely.
Cilantro seeds, which are actually the spice known as coriander, go through clear stages of development.
Here’s how to know when the timing is right.
1. Wait for the Plant to Bolt and Flower
Cilantro is a cool-season herb that bolts quickly once temperatures rise.
Bolting means the plant sends up a tall stalk and produces small white or pink flowers.
This is the first sign that seeds are on the way.
Once you see flowers, you know the countdown to picking seeds from cilantro plant has officially started.
Don’t cut the flowers off if you want seeds because that’s where the seeds will form.
2. Watch the Seed Heads Turn Brown
After the flowers fade, small green seed pods appear.
At this stage, the seeds are still immature and won’t sprout.
Over the next two to three weeks, those green pods gradually shift to a light tan and then to a brown color.
This color change is your best clue for when to pick seeds from cilantro plant.
When about 70 to 80 percent of the seed heads have turned brown, it’s time to act.
3. Check for Dryness, Not Just Color
Color alone isn’t enough.
A brown seed head can still hold moisture, and damp seeds mold quickly.
Gently squeeze a seed head between your fingers.
If it crumbles easily and the seeds feel hard and dry, you’re at the right point for when to pick seeds from cilantro plant.
If the seed head still feels soft or squishy, give it a few more days.
4. Harvest Before the Seeds Fall
Here’s the tricky part.
Once cilantro seeds are fully dry, they drop to the ground on their own.
If you wait too long, you’ll lose most of your harvest.
So the window for when to pick seeds from cilantro plant is a balance.
Pick when the seed heads are mostly brown and dry but before they start shattering and scattering seeds everywhere.
How to Pick Seeds From Cilantro Plant
Knowing when to pick seeds from cilantro plant is half the battle.
The other half is doing it correctly so you don’t lose seeds in the process.
Here’s a simple method to follow.
1. Cut the Stalks in the Morning
Choose a dry morning to harvest.
Any dew or moisture should have evaporated, but the heat of the day hasn’t set in yet.
Use clean pruning shears to snip the seed-bearing stalks just below the seed heads.
Cutting in the morning helps ensure the seeds are dry and ready.
2. Place Seed Heads in a Paper Bag
Hold a paper bag under the seed head and snip the stalk so the head falls directly into the bag.
This trick prevents seeds from scattering onto the ground.
A paper bag also allows airflow, which helps the seeds finish drying without molding.
This step is one of the most important parts of when to pick seeds from cilantro plant because timing and technique go hand in hand.
3. Let Them Dry Further Indoors
Once you’ve gathered your seed heads, spread them out on a screen or paper towel in a cool, dry, well-ventilated room.
Leave them for about one to two weeks.
This extra drying time ensures the seeds are completely ready for storage.
If you skip this step, the seeds may mold in storage even if you picked them at the perfect time for when to pick seeds from cilantro plant.
4. Separate the Seeds From the Chaff
After the seed heads are fully dry and brittle, rub them between your hands over a bowl.
The seeds will separate from the stems and husks.
You can also place them in a bag and gently shake or crush them.
Pick out any large pieces of debris by hand.
What’s left are the round, tan coriander seeds ready for storing.
Storing the Seeds You Picked From Cilantro Plant
Once you’ve nailed the timing for when to pick seeds from cilantro plant, proper storage keeps them usable for a long time.
Store the dried seeds in an airtight glass jar or container.
Keep the jar in a cool, dark, dry place like a pantry or cupboard.
Label the jar with the date so you know how fresh your seeds are.
Seeds picked from cilantro plant stay viable for germination for about two to three years.
If you’re using them for cooking, they’ll keep their flavor for about a year or two.
You can use the seeds whole as coriander spice or plant them next season to grow fresh cilantro.
So, When to Pick Seeds From Cilantro Plant?
You pick seeds from cilantro plant when the seed heads turn brown and dry on the plant, usually a few weeks after the flowers fade.
Waiting for that brown, dry stage ensures your cilantro seeds are viable and ready for storage or cooking.
Pick them too early and they won’t germinate; wait too long and they’ll fall to the ground.
Now that you know exactly when to pick seeds from cilantro plant, you can harvest coriander seeds season after season with confidence.