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You can harvest cilantro seeds for planting by letting the plants bolt, flower, and then dry out completely before collecting the seeds.
This is one of the easiest seed-saving projects you can do, and it costs almost nothing.
If you’ve ever wondered how to harvest cilantro seeds for planting, the good news is that cilantro practically does the work for you.
In this post, we’ll walk through when to harvest cilantro seeds, how to harvest cilantro seeds step by step, and how to store them so they’re ready for planting season.
Let’s dig in.
How to Harvest Cilantro Seeds for Planting: The Basics
Learning how to harvest cilantro seeds for planting starts with understanding the plant’s life cycle.
Cilantro is a cool-season herb that naturally bolts when temperatures rise.
Bolting means the plant stops producing leaves and sends up a tall flower stalk instead.
Those flowers turn into seeds, and those seeds are exactly what you want for planting.
Here are the key things to know before you harvest cilantro seeds for planting:
1. Cilantro Seeds Are Actually Coriander
The seeds you harvest from cilantro are the same thing sold as coriander in spice aisles.
So when you harvest cilantro seeds for planting, you’re also harvesting a spice you can use in the kitchen.
That’s a nice bonus for anyone learning how to harvest cilantro seeds.
2. One Plant Produces Plenty of Seeds
A single cilantro plant can produce dozens of seeds.
So you don’t need a huge patch to harvest cilantro seeds for planting next season.
A few bolted plants will give you more than enough.
3. Timing Matters More Than Technique
If you harvest cilantro seeds too early, they won’t be viable.
If you wait too long, they’ll drop to the ground before you get to them.
So the trick to how to harvest cilantro seeds for planting is all about catching them at the right moment.
When to Harvest Cilantro Seeds
Knowing when to harvest cilantro seeds is half the battle.
Here’s how to time it right:
1. Wait for the Flowers to Fade
After your cilantro blooms, small green seeds will form where the flowers were.
These green seeds aren’t ready yet.
They need to turn brown and dry before you harvest cilantro seeds for planting.
2. Watch for the Color Change
The seeds start green, then shift to tan, and finally turn a light brown.
When most of the seeds on the stalk are brown, it’s time to harvest cilantro seeds.
3. Check for Dryness
Ripe cilantro seeds should feel dry and slightly hard.
If they’re still soft, give them a few more days.
4. Act Before They Drop
Cilantro seeds scatter easily once they’re fully dry.
So check your plants daily once the seeds start browning.
The moment you see seeds turning brown, it’s time to harvest cilantro seeds for planting.
How to Harvest Cilantro Seeds Step by Step
Now let’s get into the actual process of how to harvest cilantro seeds for planting.
1. Gather Your Supplies
You’ll need a pair of scissors or pruning shears, a paper bag or bowl, and a dry, well-ventilated space for drying.
That’s it.
Harvesting cilantro seeds doesn’t require fancy tools.
2. Cut the Seed Heads
Snip the brown seed heads off the plant, leaving a few inches of stem attached.
Be gentle so the seeds don’t scatter as you cut.
This is the most delicate part of how to harvest cilantro seeds.
3. Place Them in a Paper Bag
Drop the cut seed heads into a paper bag upside down.
The bag catches any seeds that fall as they finish drying.
This trick makes it much easier to harvest cilantro seeds without losing half of them.
4. Let Them Dry Completely
Leave the bag in a warm, dry spot for one to two weeks.
The seeds will finish drying and separate from the stems.
5. Separate the Seeds
Once dry, shake the bag or rub the seed heads between your fingers.
The seeds will fall away from the chaff.
Pick out the seeds and discard the stems and dried flower bits.
Now you’ve successfully learned how to harvest cilantro seeds for planting.
6. Store Them Properly
Put your harvested cilantro seeds in a paper envelope or glass jar.
Label it with the date and the variety.
Keep it in a cool, dark, dry place until you’re ready to plant.
Tips for Better Cilantro Seed Harvests
A few extra pointers can make your next harvest even smoother:
1. Let a Few Plants Bolt on Purpose
If you want seeds, don’t cut off the flower stalks.
Let at least one or two cilantro plants bolt so you have plenty to harvest.
2. Harvest in Dry Weather
Moisture encourages mold, so harvest cilantro seeds on a dry, sunny day.
3. Store Seeds Away From Heat
Heat can kill the embryo inside the seed.
So keep your harvested cilantro seeds cool if you want them to sprout later.
4. Test Germination Before Planting
Before planting, press a few seeds between damp paper towels.
If they sprout within a week or two, they’re viable.
That’s a simple way to confirm your effort to harvest cilantro seeds paid off.
So, How Do You Harvest Cilantro Seeds for Planting?
You harvest cilantro seeds for planting by letting the plants flower, waiting for the seeds to turn brown and dry, then cutting the seed heads and letting them finish drying in a paper bag.
Once dry, separate the seeds from the chaff and store them in a cool, dark place.
Learning how to harvest cilantro seeds for planting is a simple, rewarding project that saves money and keeps your garden growing season after season.
Give it a try with your next batch of bolting cilantro, and you’ll never need to buy seeds again.