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You can grow lavender from cuttings in water, and it’s one of the easiest ways to multiply your favorite plants without spending a dime.
All you need is a healthy stem, a glass of water, and a little patience.
If you’ve ever wondered about growing lavender from cuttings in water, the good news is that it works beautifully when you follow a few simple steps.
In this post, we’ll walk through exactly how to grow lavender from cuttings in water, from taking the cutting to potting it up.
Let’s get started.
How to Grow Lavender from Cuttings in Water
Growing lavender from cuttings in water starts with choosing the right stem at the right time.
The best season to take lavender cuttings is in late spring or early summer when the plant is actively growing.
Here’s how to do it step by step.
1. Pick a Healthy, Non-Flowering Stem
Look for a softwood cutting that’s green, flexible, and about 4 to 6 inches long.
Avoid stems that have flowers or buds on them because the plant will put its energy into blooming instead of rooting.
You want a stem that’s firm but not woody, and free of pests or disease.
2. Cut Just Below a Leaf Node
Using clean, sharp scissors or pruners, make your cut just below a leaf node.
That node is where the roots will eventually emerge, so it needs to stay intact.
Strip off the leaves from the bottom two inches of the stem so nothing sits in the water and rots.
3. Place the Cutting in a Glass of Water
Fill a clear glass or jar with room temperature water and pop the cutting in.
Make sure only the bare part of the stem is submerged, not the leaves.
Put the glass somewhere bright but out of direct sunlight, like a windowsill with filtered light.
4. Change the Water Every Few Days
Fresh water keeps bacteria from building up, which is the number one reason cuttings fail.
Swap out the water every two to three days, and rinse the stem gently if it feels slimy.
Within two to four weeks, you should start seeing tiny white roots forming at the base.
5. Wait Until Roots Are 1–2 Inches Long
Don’t rush the transplant once roots appear.
Let them grow to about 1 to 2 inches before you move the cutting into soil.
That gives the roots enough strength to survive the transition.
Why Growing Lavender from Cuttings in Water Works
Growing lavender from cuttings in water works because lavender is a resilient plant that can develop roots from stem tissue.
When the cut end sits in water, the plant forms new root cells in response to the moisture and hormones already present in the stem.
It’s a low-stress way to clone your favorite lavender plant.
The water method also lets you watch the roots develop, which is pretty satisfying.
And since you’re not dealing with soil, there’s less chance of fungus gnats or soil-borne diseases.
That said, water rooting is just the beginning.
Once roots form, you still need to pot the cutting into soil so it can grow into a full plant.
Also, keep in mind that lavender cuttings in water can be a bit slower than other plants, so patience is key.
1. Water Provides Constant Moisture
Roots need consistent moisture to form, and water delivers that directly.
Unlike soil, which can dry out unevenly, water keeps the cut end hydrated at all times.
2. You Can See Progress Clearly
Because the glass is clear, you can monitor root growth without disturbing the plant.
If the water gets cloudy, you know it’s time for a change.
3. It’s Inexpensive and Simple
You don’t need rooting hormone, special soil, or a greenhouse.
A glass of water and a windowsill will do the trick.
Common Mistakes When Growing Lavender from Cuttings in Water
Even though growing lavender from cuttings in water is simple, a few mistakes can sabotage your success.
Avoid these common pitfalls and your cuttings will have a much better chance.
1. Leaving Leaves Submerged
Leaves sitting in water will rot quickly and turn the water murky.
Always strip the lower leaves before placing the cutting in the glass.
2. Using Tap Water with High Chlorine
If your tap water is heavily treated, let it sit overnight before using it.
That allows chlorine to dissipate, which is gentler on delicate cuttings.
3. Skipping the Water Change
Stale water breeds bacteria, and bacteria kills cuttings.
Change the water every few days without fail.
4. Putting Cuttings in Direct Sun
Too much sun will cook the cutting before it has roots to support itself.
Bright, indirect light is the sweet spot.
5. Potting Too Early
If you move the cutting to soil before roots are long enough, it will struggle.
Wait until roots are at least an inch long.
So, Can You Grow Lavender from Cuttings in Water?
You can grow lavender from cuttings in water, and it’s a rewarding project that anyone can try.
Just take a healthy cutting, keep the water fresh, and give it bright indirect light.
Before you know it, you’ll have rooted lavender ready to plant in soil.
Growing lavender from cuttings in water is a simple, cost-effective way to expand your garden.
Give it a try.