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You can grow indoor cilantro successfully by giving it bright light, cool temperatures, and consistently moist soil.
Growing cilantro indoors is totally doable, even if you’ve struggled with it before.
It’s one of those herbs that people either love or find frustrating, but once you understand what it needs, growing cilantro indoors becomes much easier.
Cilantro is a cool-season herb, which means it doesn’t love the hot, dry conditions found in most homes.
But that doesn’t mean you can’t grow indoor cilantro successfully.
You just need to know a few tricks to keep it happy.
In this post, we’ll walk through how to grow cilantro indoors, from picking the right spot to harvesting your first leaves.
Let’s get into it.
How to Grow Indoor Cilantro: The Basics
Growing indoor cilantro starts with understanding what this herb actually needs to thrive.
Cilantro isn’t like basil or mint that will grow almost anywhere.
It has specific preferences, and when you meet those preferences, growing cilantro indoors becomes a breeze.
Here’s what you need to know:
1. Light Is Everything for Indoor Cilantro
Cilantro needs at least 4 to 6 hours of bright, direct light every day when grown indoors.
A sunny south-facing window is ideal for growing cilantro indoors.
If you don’t have a good window, a grow light works wonders.
LED grow lights are affordable and can keep your indoor cilantro thriving year-round.
Just make sure the light isn’t too far away, or your cilantro will get leggy and weak.
2. Keep Your Indoor Cilantro Cool
Cilantro bolts (goes to seed) when temperatures rise above 75°F.
Since most homes are kept warm, finding a cool spot for your indoor cilantro is key.
A windowsill that gets morning sun but stays cool in the afternoon is perfect.
You can also run a small fan nearby to keep air moving and temperatures down.
3. Use Well-Draining Soil for Growing Cilantro Indoors
Cilantro hates soggy roots.
Use a potting mix that drains well, and always choose a container with drainage holes.
A mix of potting soil and perlite works great for growing indoor cilantro.
Terracotta pots are excellent because they wick away extra moisture.
4. Water Consistently but Don’t Overdo It
Indoor cilantro likes consistently moist soil, not wet soil.
Water when the top inch of soil feels dry to the touch.
Overwatering is the number one killer of indoor cilantro.
If leaves turn yellow and droopy, you’re probably watering too much.
Best Way to Plant Cilantro Indoors
Now that you know the basics, let’s talk about how to actually plant your cilantro.
You’ve got two main options when you grow cilantro indoors: starting from seed or buying transplants.
1. Start Cilantro From Seed for Best Results
Growing cilantro from seed indoors is the best way to go.
Cilantro has a taproot, which means it doesn’t like being transplanted.
Direct sowing into its final pot avoids root shock.
Sow seeds about ¼ inch deep and keep the soil moist until they sprout.
Seeds usually germinate in 7 to 10 days.
2. Soak Seeds to Speed Up Germination
Cilantro seeds have a tough outer shell.
Gently crushing the seeds or soaking them overnight can speed up sprouting.
This trick is especially helpful when growing cilantro indoors.
3. Choose the Right Container Size
Cilantro needs depth because of its taproot.
Pick a pot that’s at least 8 inches deep for indoor cilantro.
Wide, shallow bowls also work if you’re growing several plants together.
Just make sure there’s room for roots to stretch down.
4. Succession Planting Keeps You in Cilantro
Cilantro has a short life cycle.
To keep a steady supply, sow new seeds every 2 to 3 weeks.
This way, when one batch starts to bolt, another is ready to take its place.
Succession planting is a game-changer for anyone serious about growing cilantro indoors.
How to Care for Indoor Cilantro
Caring for your indoor cilantro is pretty simple once it’s established.
Give it light, water, and a little attention, and it’ll reward you with fresh leaves for weeks.
1. Fertilize Lightly
Cilantro doesn’t need much fertilizer.
A diluted liquid fertilizer every 3 to 4 weeks is plenty.
Too much nitrogen makes cilantro grow leaves but lose flavor.
2. Pinch Off Flower Stalks
If you see flower stalks forming on your indoor cilantro, pinch them off.
This delays bolting and keeps the leaves tender and tasty.
Once cilantro flowers, the leaves turn bitter and the plant stops producing.
3. Harvest From the Outside In
Snip outer leaves first when harvesting cilantro.
This lets the inner leaves keep growing.
Never take more than a third of the plant at once.
4. Watch for Pests
Indoor cilantro can attract aphids, whiteflies, and spider mites.
Check the undersides of leaves regularly.
A spray of soapy water handles most pest problems quickly.
So, Can You Grow Cilantro Indoors?
You can grow cilantro indoors, and with the right light, temperature, and watering habits, it’ll thrive.
Growing cilantro indoors isn’t complicated once you understand that this herb prefers cool conditions and consistent moisture.
Start with seeds, give it plenty of light, keep it out of the heat, and harvest regularly.
With a little patience, you’ll have fresh cilantro on your windowsill all year long.