How To Keep Cilantro Growing Indoors

Keeping cilantro growing indoors is absolutely possible when you give it the right light, water, and temperature conditions.
 
Cilantro is one of those herbs that grows fast, tastes amazing, and can thrive on a sunny windowsill if you know what you’re doing.
 
Whether you’re a seasoned gardener or just someone who wants fresh cilantro for tacos and salsa year-round, growing cilantro indoors is a rewarding project.
 
In this post, we will explore how to keep cilantro growing indoors, the best setup for cilantro indoors, and tips to make sure your cilantro plants stay healthy and productive.
 
Let’s dive in.
 

Why You Can Keep Cilantro Growing Indoors

You can keep cilantro growing indoors because cilantro is a cool-season herb that adapts well to controlled environments.
 
Indoor growing gives you the power to manage temperature, light, and moisture, which are the three biggest factors in cilantro health.
 
Here’s why cilantro responds so well to indoor growing.
 

1. Cilantro Loves Moderate Temperatures

Cilantro grows best between 65°F and 75°F, which happens to be the average indoor temperature in most homes.
 
This is one of the main reasons you can keep cilantro growing indoors without much fuss.
 
When it gets too hot, cilantro bolts quickly and turns bitter.
 
Indoors, you can keep things cool and steady, which slows bolting and keeps those leaves tender.
 

2. You Control the Light

Cilantro needs about 4 to 6 hours of direct sunlight daily, and a south-facing window usually delivers that.
 
If natural light is weak, a grow light makes keeping cilantro growing indoors much easier.
 
LED grow lights are affordable, energy-efficient, and let you grow cilantro indoors all year long, even in winter.
 

3. Cilantro Grows Well in Containers

Cilantro has a deep taproot, so it needs a pot at least 8 to 12 inches deep with drainage holes.
 
This makes container growing simple and it’s exactly why so many people succeed at keeping cilantro growing indoors.
 
A well-drained potting mix keeps the roots happy and prevents the soggy conditions that cause root rot.
 

How to Keep Cilantro Growing Indoors Step by Step

Now that you know why it works, here’s how to actually keep cilantro growing indoors from seed to harvest.
 

1. Start With the Right Seeds and Soil

Use fresh cilantro seeds, also called coriander seeds, and sow them directly into their final pot.
 
Cilantro doesn’t transplant well because of that taproot, so skip the seed tray and plant straight into a deep container.
 
Fill your pot with a loose, well-draining potting mix and sow seeds about a quarter-inch deep.
 
Keep the soil moist and you’ll see sprouts in 7 to 10 days.
 

2. Water Consistently but Gently

Cilantro likes evenly moist soil, not soaking wet and not bone dry.
 
Water when the top inch of soil feels dry, and always empty the saucer underneath to avoid standing water.
 
Consistent watering is one of the biggest secrets to keeping cilantro growing indoors without wilting or yellowing.
 

3. Give It Plenty of Light

Place your pot in your sunniest window, or set up a grow light about 6 inches above the plant.
 
Run the light for 10 to 12 hours a day and your cilantro will stay compact and leafy.
 
If your cilantro starts stretching toward the window with long, thin stems, it needs more light.
 

4. Harvest Often to Encourage Growth

Snip the outer stems near the base once the plant is about 6 inches tall.
 
Regular harvesting is key to keeping cilantro growing indoors because it delays bolting and promotes fresh new growth.
 
Never take more than a third of the plant at once so it can recover quickly.
 

Common Problems When Keeping Cilantro Growing Indoors

Even with good care, a few issues can pop up when you’re keeping cilantro growing indoors.
 
Here’s how to handle the most common ones.
 

1. Bolting and Flowering

If your cilantro shoots up a tall stalk with white flowers, it’s bolting.
 
This happens when the plant gets too warm or its roots are stressed.
 
Keep temperatures cool, water consistently, and harvest often to slow it down.
 

2. Leggy, Weak Growth

Sparse, spindly stems usually mean not enough light.
 
Move your cilantro to a brighter spot or add a grow light to fix it fast.
 

3. Pests Like Aphids and Spider Mites

Indoor herbs can attract aphids and spider mites, especially in dry air.
 
Rinse the leaves with water or use insecticidal soap, and check your plants weekly.
 
Good airflow around your cilantro also helps keep pests away.
 

So, How to Keep Cilantro Growing Indoors?

Keeping cilantro growing indoors comes down to cool temperatures, steady moisture, and plenty of bright light.
 
Use a deep pot, water consistently, harvest often, and watch for bolting and pests.
 
With those basics in place, you can keep cilantro growing indoors all year and enjoy fresh leaves whenever you need them.
 
Happy growing.