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Cilantro not germinating is one of the most common frustrations for home gardeners, and it usually comes down to a few specific issues with the seeds themselves or the conditions you’re providing.
If you’ve been asking yourself “why is my cilantro not germinating?” you’re definitely not alone.
Cilantro seeds are notoriously finicky, and they have a tough outer shell that makes germination slower and more unpredictable than many other herbs.
The good news is that once you understand what cilantro seeds actually need, you can fix the problem and finally see those little green sprouts pop up.
In this post, we’ll explore why your cilantro is not germinating and walk through the most effective solutions to get your crop growing.
Why Cilantro Is Not Germinating
Cilantro not germinating usually happens because of the seed’s hard outer coating, temperature stress, or moisture problems in the soil.
Here are the main reasons your cilantro seeds are sitting there doing nothing.
1. The Seeds Have a Tough Outer Shell
Cilantro seeds are actually small, round fruits called schizocarps, and each one contains two seeds inside a hard, ribbed husk.
That tough shell is the number one reason cilantro is not germinating as fast as you’d expect.
Unlike soft seeds that sprout in a few days, cilantro seeds can take two to three weeks to break through that armor.
Many gardeners give up after a week, thinking their cilantro is not germinating at all, when really the seeds are just slow.
2. You Planted the Whole Seed Without Splitting It
Because each cilantro seed ball holds two seeds, planting them whole means each one has to work twice as hard to sprout.
If your cilantro is not germinating, try gently crushing or rubbing the seed balls between your fingers to separate them before planting.
This simple step exposes more surface area to moisture and can dramatically speed up germination.
It’s one of the easiest fixes when cilantro seeds are not germinating.
3. The Soil Temperature Is Too Warm or Too Cold
Cilantro prefers cooler soil, ideally between 55°F and 68°F.
When soil temps climb above 75°F, cilantro seeds often go dormant and refuse to sprout.
This is why cilantro not germinating is such a common complaint in midsummer plantings.
On the flip side, soil that’s too cold will also stall germination and leave you wondering why your cilantro is not germinating.
4. The Soil Is Too Dry or Way Too Wet
Cilantro seeds need consistent moisture to soften that hard shell, but soggy soil causes rot before they ever sprout.
If your cilantro is not germinating, check that the top inch of soil stays evenly damp, not soaking wet.
A light misting twice a day works better than a heavy watering that drowns the seeds.
When cilantro seeds are not germinating, poor moisture balance is often the quiet culprit.
How to Get Cilantro Seeds to Germinate
If your cilantro is not germinating, these steps will give your seeds the best possible chance.
1. Soak the Seeds Overnight
Soaking cilantro seeds in water for 12 to 24 hours softens the outer shell and jumpstarts the germination process.
This is one of the most reliable tricks when cilantro is not germinating on schedule.
Just drop the seeds in a bowl of room-temperature water and plant them the next day.
2. Scarify the Seed Coat
Gently rubbing the seeds with sandpaper or cracking them lightly with the back of a spoon helps water penetrate faster.
Scarifying is a game-changer when cilantro seeds are not germinating because it bypasses the toughest barrier.
Be careful not to crush the seeds completely, just rough up that outer layer.
3. Plant at the Right Depth
Cilantro seeds should be planted only about a quarter inch deep.
Planting too deep is a hidden reason cilantro is not germinating, since the tiny sprouts can’t push through heavy soil.
Lightly cover the seeds and press the soil down gently so they make good contact.
4. Keep the Soil Consistently Moist
Use a spray bottle to mist the soil daily so you never disturb the seeds.
A humidity dome or plastic wrap over the pot can help retain moisture when cilantro is not germinating.
Just remove the cover once you see green sprouts appear.
5. Be Patient and Give It Time
Even under perfect conditions, cilantro can take up to three weeks to germinate.
If your cilantro is not germinating after a week, don’t panic and don’t dig around looking for seeds.
Patience is honestly half the battle with this herb.
So, Why Is My Cilantro Not Germinating?
Cilantro is not germinating most often because of its hard seed coat, incorrect soil temperature, or inconsistent moisture.
The fix is usually simple: soak or scarify the seeds, plant them shallow, keep the soil cool and evenly damp, and wait patiently.
Once you address these issues, your cilantro not germinating problems will fade and you’ll be harvesting fresh leaves in no time.