Why Is My Cilantro Not Growing Well

Your cilantro not growing well is usually caused by a handful of fixable problems, and once you correct them, your cilantro will bounce back fast.
 
If you’ve been wondering why your cilantro is not growing well while your other herbs thrive, you’re definitely not alone.
 
Cilantro has a reputation for being fussy, but the truth is it just has very specific needs that differ from basil, parsley, or mint.
 
In this post, we’ll dig into the most common reasons your cilantro is not growing well and exactly how to turn things around.
 
Let’s get growing.

Why Is My Cilantro Not Growing Well?

Cilantro not growing well almost always comes down to one or more of these core issues, and each one is easy to fix once you know what to look for.

1. It’s Too Hot for Cilantro

Cilantro is a cool-season herb, which means it thrives in temperatures between 50°F and 85°F.
 
When the mercury climbs above 85°F, cilantro not growing well becomes almost guaranteed because the plant bolts, sending up a flower stalk instead of producing leaves.
 
That’s why cilantro planted in midsummer often looks leggy, sparse, and bitter.
 
If your cilantro is not growing well in the heat, try growing it in partial shade during the hottest part of the day.
 
You can also plant cilantro in early spring or late summer so it matures before or after the worst heat.

2. The Soil Is Too Wet or Too Dry

Cilantro likes consistently moist soil, but not soggy roots.
 
If your cilantro is not growing well, check the drainage in your pots or garden beds.
 
Waterlogged soil causes root rot, and the plant will yellow, wilt, and stop growing.
 
On the flip side, letting cilantro dry out completely stresses the plant and triggers bolting.
 
Aim to water when the top inch of soil feels dry, and make sure your containers have drainage holes.
 
Mulching around the base helps lock in moisture so your cilantro keeps growing well through dry spells.

3. Not Enough Sunlight (or Too Much)

Cilantro needs about 4 to 6 hours of direct sunlight each day.
 
If your cilantro is not growing well in full shade, it will stretch, weaken, and produce fewer leaves.
 
But in very hot climates, too much harsh afternoon sun makes cilantro not growing well even faster.
 
The sweet spot is morning sun with some afternoon shade.
 
Watch your plant for a few days and adjust its position until you find the light balance that keeps it happy.

4. Poor Soil and Too Much Nitrogen

Cilantro isn’t a heavy feeder, and too much nitrogen fertilizer actually causes more leaf growth at the expense of flavor and overall health.
 
If your cilantro is not growing well, the soil may be too rich or too compacted.
 
Cilantro prefers loose, well-draining soil with a pH between 6.2 and 6.8.
 
Adding compost before planting gives it the gentle nutrients it needs.
 
Avoid piling on synthetic fertilizers, as they push cilantro to bolt rather than thrive.

5. Overcrowding and Poor Spacing

Cilantro seeds are actually two seeds in one husk, so they sprout in tight clusters.
 
If you don’t thin your seedlings, cilantro not growing well is the natural result because the plants compete for water, light, and nutrients.
 
Thin your cilantro so plants sit 6 to 8 inches apart.
 
This airflow also reduces the risk of fungal diseases that make cilantro not growing well even worse.

How to Fix Cilantro Not Growing Well

Fixing cilantro not growing well starts with identifying the cause and adjusting your care routine.

1. Succession Plant Cilantro Every Few Weeks

Because cilantro bolts quickly, the smartest fix is to sow new seeds every 2 to 3 weeks.
 
That way, when one patch starts to fade, another is ready to harvest.
 
This single habit solves most cilantro not growing well complaints.

2. Harvest Often and Correctly

Regular harvesting encourages cilantro to keep producing fresh leaves.
 
Snip outer stems near the base and never take more than a third of the plant at once.
 
If your cilantro is not growing well, try harvesting more frequently and you’ll likely see new growth within days.

3. Shade Cloth in Hot Weather

A simple shade cloth can drop temperatures by 10 degrees or more.
 
This is one of the easiest ways to stop cilantro not growing well during summer.
 
Drape it over your cilantro during the hottest hours and remove it in the evening.

4. Watch for Pests and Disease

Aphids, whiteflies, and powdery mildew all contribute to cilantro not growing well.
 
Inspect the undersides of leaves weekly and spray with neem oil or insecticidal soap at the first sign of trouble.
 
Good airflow and proper spacing prevent most of these issues before they start.

5. Choose Slow-Bolting Varieties

Some cilantro varieties are bred to resist bolting.
 
‘Slow Bolt,’ ‘Santo,’ and ‘Calypso’ are great choices if cilantro not growing well has been a recurring problem.
 
These varieties stay productive longer and tolerate warmer temperatures better.

So, Why Is My Cilantro Not Growing Well?

Your cilantro not growing well is most likely due to heat stress, inconsistent watering, overcrowding, poor soil, or too much nitrogen.
 
Fix those issues and your cilantro will reward you with fresh, flavorful leaves all season long.
 
Start with succession planting, keep the soil evenly moist, and give your cilantro morning sun with afternoon shade.
 
With a little patience and the right conditions, cilantro not growing well becomes a problem of the past.
 
Happy gardening.