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You can regrow cilantro in water pretty easily, and it’s one of the most satisfying kitchen projects you can start today.
If you’ve ever chopped a bunch of cilantro and watched those thick stems go into the trash, you’ve basically been throwing away free future cilantro.
The trick to regrow cilantro in water is to use cuttings from a healthy plant rather than expecting a full new plant from a single leaf.
You can regrow cilantro in water from stem cuttings that include a little bit of the crown or root base, and those cuttings will push out fresh new leaves within a week or two.
It won’t turn into a huge bush overnight, but it will give you a steady supply of fresh cilantro for garnishes while you plan your next full planting.
In this post, we’ll walk through how to regrow cilantro in water step by step, what actually works, and the mistakes that make people give up too soon.
Let’s get into it.
Why You Can Regrow Cilantro in Water
Cilantro can regrow in water because the plant has active meristem tissue near the base of the stem, and that tissue can produce new roots and leaves when given moisture and light.
Here’s why this works so well:
1. Cilantro Roots Easily From Stem Cuttings
Cilantro is a fast-growing herb, and its stems root quickly when submerged in clean water.
If you cut a stem just above a leaf node and place it in water, tiny white roots will usually appear in about five to seven days.
This is why you can regrow cilantro in water with nothing more than a glass, some tap water, and a sunny windowsill.
2. The Base of the Plant Holds Energy
The lower portion of a cilantro stem stores carbohydrates that the plant uses to push out new growth.
When you place that base in water, it doesn’t have to work hard to stay alive, so it redirects that energy into new leaves.
That stored energy is the main reason you can regrow cilantro in water even if you don’t have any soil nearby.
3. Cilantro Is a Cool-Season Herb
Cilantro thrives in mild temperatures, which makes a kitchen windowsill or a shaded porch perfect for water propagation.
It doesn’t need intense heat or full sun to start rooting, so you can regrow cilantro in water indoors all year long.
Just keep it away from radiators, heating vents, or anything that dries the air out too fast.
How to Regrow Cilantro in Water Step by Step
The process to regrow cilantro in water is simple, but the details matter if you want strong roots and flavorful leaves.
Here’s the exact method:
1. Start With Healthy Cuttings
Choose stems that are firm, green, and at least four to six inches long.
Make your cut just above a leaf node, because that’s where new roots and leaves will emerge.
Avoid stems that are yellow, wilted, or flowering, since those are past their best rooting stage.
2. Remove the Lower Leaves
Strip off any leaves that would sit below the water line.
Leaves left in water will rot, cloud the water, and slow down the rooting process.
You want a clean, bare stem section that can sit in the water while the upper leaves stay dry.
3. Place Cuttings in a Glass of Water
Use a clear glass or jar so you can watch the roots develop.
Fill it with room-temperature water and submerge only the bottom one to two inches of the stems.
Don’t crowd too many cuttings in one glass, because good airflow and light exposure help prevent rot.
4. Change the Water Every Few Days
Fresh water keeps oxygen levels up and discourages bacteria.
Change the water every two to three days, and rinse the stems gently with your fingers.
If the water starts to smell or look cloudy, change it immediately, because that’s a sign roots are suffocating.
5. Give It Bright, Indirect Light
Place your glass on a windowsill that gets bright but indirect sunlight.
Too much direct sun can heat the water and cook the tender new roots.
A spot near a kitchen window with morning light is usually perfect for cilantro cuttings.
How Long Does It Take to Regrow Cilantro in Water
You can regrow cilantro in water in about one to two weeks, depending on temperature, light, and the health of your cuttings.
Here’s what to expect:
1. Roots Appear in Five to Seven Days
The first sign of success is tiny white bumps at the base of the stem.
Those bumps turn into thin roots that branch out over the next few days.
Once roots are about an inch long, your cilantro is officially regrowing in water.
2. New Leaves Show Up in One to Two Weeks
After roots form, the plant shifts energy into producing fresh leaves.
You’ll see small, bright green leaves unfurl at the top of the cutting.
This is the moment you can start snipping a few leaves for tacos, soups, or salsa.
3. Growth Slows After a Few Weeks in Water
Water alone can’t supply all the nutrients cilantro needs for long-term growth.
After three to four weeks, growth often slows, and leaves may turn pale.
That’s your cue to either transplant into soil or start a fresh batch of cuttings.
Tips to Keep Cilantro Growing in Water
If you want to regrow cilantro in water successfully for as long as possible, keep these tips in mind.
1. Add a Drop of Liquid Fertilizer
A very diluted drop of liquid houseplant fertilizer every two weeks can keep leaves greener.
Don’t overdo it, because too much fertilizer in water can burn the roots.
2. Harvest From the Top
Snip the outer leaves first and leave the center growing point intact.
This keeps the plant producing new stems instead of shutting down.
3. Transplant When Roots Are Two to Three Inches Long
If you want a bigger harvest, move your rooted cilantro into a pot with well-draining soil.
Water it well for the first few days, then treat it like any other cilantro plant.
So, Can You Regrow Cilantro in Water?
You can regrow cilantro in water, and it’s a simple, low-cost way to keep fresh herbs on hand.
Start with healthy stem cuttings, change the water often, and give them bright, indirect light.
You’ll have usable cilantro leaves in about two weeks, and you can repeat the process whenever you buy a new bunch.
So the next time you’re trimming cilantro for dinner, save those stems and give this water method a try.