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Yes, you can split lavender bushes.
It’s one of the best ways to keep your plants healthy, vigorous, and full of blooms for years to come.
If you’ve noticed your lavender looking woody, sparse in the center, or just getting too big for its spot, splitting lavender bushes is a great solution.
When you split lavender bushes correctly, you’re essentially creating new plants from the one you already have.
You can split lavender bushes in both spring and fall, though timing matters for the best success.
In this post, we’ll cover how to split lavender bushes, why and when you should do it, and the best techniques to ensure your divisions thrive.
Let’s dig right in.
Why You Can Split Lavender Bushes
Splitting lavender bushes works because lavender is a perennial that responds well to division when done at the right stage of its life.
But there’s a catch you should know about before you split lavender bushes.
Unlike some perennials that you can divide every few years without a second thought, lavender has a woody base that doesn’t always regenerate from old, hard stems.
So why can you still split lavender bushes successfully?
Because young, healthy plants have plenty of soft, green growth near the crown that holds dormant buds ready to form new roots.
When you split those sections and give them proper soil and water, they establish as independent plants.
Let’s break down the specific reasons this works.
1. Lavender Grows From the Crown Outward
Lavender bushes produce new stems from a central crown near the soil line.
As long as you split lavender bushes into sections that each have part of that crown with some green shoots, you’re giving each piece a real chance.
The green shoots are key because they photosynthesize and fuel new root production.
So when you ask can you split lavender bushes, the answer depends heavily on preserving those crown buds.
If the lavender is all woody with no soft growth attached, splitting it will likely fail.
But with healthy young wood, you’re golden.
2. Divisions Root Faster Than Cuttings
When you split lavender bushes, you’re keeping an intact root system on each piece, unlike taking cuttings which start with no roots at all.
That means your divisions don’t have to spend weeks just trying to push out roots.
Instead, they have immediate access to water and nutrients, so they can focus on establishing their above-ground growth.
This is why splitting is often more reliable than propagating from cuttings for many gardeners.
And it’s why you can split lavender bushes with confidence if the plant is healthy.
3. It Rejuvenates Tired Plants
Lavender bushes older than five or six years tend to become woody in the center and produce fewer fragrant stems.
You can split lavender bushes to remove those tired, woody sections and replant only the vigorous outer portions.
This isn’t just about making more plants.
It’s about refreshing the original bush so it sends out lush new growth.
So yes, you can split lavender bushes for rejuvenation, giving your garden a burst of energy without buying anything new.
When You Should Split Lavender Bushes
Timing is everything when you decide to split lavender bushes.
Get the timing right, and your divisions will establish quickly.
Get it wrong, and you may lose the whole plant.
1. Early Spring Is Prime Time
The best window to split lavender bushes is early spring, just as new growth begins to show at the base of the plant.
The soil is still cool and moist, which helps stress the divided roots less.
Plus, lavender has the entire growing season ahead to put down strong roots before winter arrives.
So if you’re asking when can you split lavender bushes, aim for that moment when you see fresh green tips emerging.
2. Fall Division Works in Mild Climates
If you live in a region with mild winters, you can also split lavender bushes in early fall.
The idea is to give divisions at least four to six weeks to root before the ground freezes.
Fall splitting works best in zones 8 and warmer.
In colder areas, fall divisions may not have enough time to anchor themselves, and frost heave can push them out of the soil.
So think carefully about your local climate when you plan to split lavender bushes.
3. Avoid Splitting During Bloom or Extreme Heat
You should never split lavender bushes while they’re actively blooming or during a heatwave.
Blooming pulls all the plant’s energy into flowers, leaving little for root regeneration.
And extreme heat can quickly dry out damaged roots before they recover.
If you miss the spring window, it’s smarter to wait for fall than to risk splitting lavender bushes in the middle of summer.
Patience pays off with this aromatic perennial.
How to Split Lavender Bushes Step by Step
Now that you know why and when you can split lavender bushes, let’s get into the actual process.
It’s straightforward, but there are a few important details to follow.
1. Prepare the New Planting Spots First
Before you even lift the lavender, dig holes for your new divisions.
Lavender likes well-draining, slightly sandy or gritty soil with a neutral to alkaline pH.
If your soil is heavy clay, mix in some coarse sand or fine grit to improve drainage.
This prep step reduces the time roots are exposed to air.
When you’re ready to split lavender bushes, you can transplant immediately.
2. Dig Up the Whole Plant Carefully
Use a garden fork or spade to loosen the soil around the lavender’s drip line.
Work in a circle, going about eight to ten inches deep, to avoid slicing through too many roots.
Lift the entire root ball out of the ground and gently shake off excess soil.
Now you can see the natural divisions in the crown, which are your guide for cutting.
This is the most critical moment when you split lavender bushes, so handle it gently.
3. Divide With a Clean, Sharp Knife
Look for sections that have a good cluster of green stems and some healthy roots attached.
Use a sterilized, sharp knife or pruning shears to cut through the root ball.
Each division should be roughly fist-sized, with at least three to five green shoots.
Remember that tender green wood roots easily, while woody brown stems often won’t.
When you split lavender bushes, always discard the dead, woody center if it doesn’t have any green growth.
4. Plant Divisions at the Same Depth
Set each division in its prepared hole at the same soil depth it was growing before.
Burying the crown too deep invites rot, and planting too shallow exposes roots to drying.
Backfill with your improved soil and firm it gently around the roots.
Water thoroughly right after planting to settle the soil.
Don’t water again until the top inch of soil dries out, as lavender hates soggy feet.
5. Trim the Tops to Reduce Stress
Immediately after you split lavender bushes, cut back each division’s stems by about one-third.
This reduces the water demand on roots that are still recovering.
It also encourages bushier new growth from the base.
Skip heavy pruning on the main plant if you are just splitting off a side piece.
But for a full division, a quick trim is a lifesaver.
Aftercare and Common Mistakes When You Split Lavender Bushes
Your job isn’t done once the divisions are in the ground.
How you care for them in the following weeks determines success.
1. Water Smartly, Not Excessively
For the first two weeks, keep the soil slightly moist but never wet.
After that, taper off watering to encourage deep root growth.
Overwatering is the number one killer of newly split lavender bushes.
So let the soil dry out between waterings as lavender naturally prefers.
2. Skip Fertilizer for the First Season
Lavender thrives in lean soil and doesn’t need rich feeding.
When you split lavender bushes, avoid adding compost or fertilizer at planting time.
Excess nitrogen will push out soft, floppy growth that struggles to survive winter.
Let the divisions settle in naturally using the nutrients already present.
If you must feed, wait until the following spring with a light, low-nitrogen organic fertilizer.
3. Watch for Wilting in the First Week
Some wilting is normal for the first few days after you split lavender bushes.
But if leaves turn crispy and brown after a week, you may have given the plant too much sun too soon.
Consider temporary shade with a row cover or a light cloth for a few afternoons.
Also, make sure you didn’t leave any roots exposed at the surface.
Tamp down the soil again if needed to keep roots covered.
4. Mulch With Grit, Not Bark
A layer of small gravel or pea stone around the base helps keep the crown dry and warm.
Do not use wood mulch, which holds moisture against the stems.
That moisture leads to fungal rot, which is the last thing you need after all that work.
This simple step proves you can split lavender bushes successfully with just a little extra attention.
So, Can You Split Lavender Bushes?
Yes, you can split lavender bushes, as long as you do it at the right time and in the right way.
You can split lavender bushes in early spring or fall, using healthy green crown sections with attached roots.
You can split lavender bushes to rejuvenate old plants, multiply your stock, or share with friends.
Just remember to avoid woody dead centers and never divide during peak bloom or extreme heat.
With proper aftercare, your divisions will reward you with fragrant, silvery foliage and stunning purple blooms.
So go ahead and grab your spade because you can split lavender bushes and turn one plant into many.
Happy gardening.