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You can divide lavender in spring by digging up the plant and splitting its root ball into smaller sections.
Spring is actually one of the best times to divide lavender because the plant is waking up from winter dormancy and can recover quickly.
If you’re wondering how to divide lavender in spring, the process is pretty simple once you know what to look for.
You just need a sharp spade, a pair of clean pruners, and a spot in your garden where the new divisions can settle in.
The goal is to separate a mature lavender plant into two or more healthy pieces, each with its own roots and stems.
In this post, we’ll walk through exactly how to divide lavender in spring, when to do it, and the mistakes to avoid so your plants thrive.
Let’s dig in.
Why Divide Lavender in Spring
Dividing lavender in spring gives the plant a fresh start before the heat of summer kicks in.
Lavender is a woody perennial, and over time, the center of the plant gets woody and less productive.
When you divide lavender in spring, you rejuvenate the plant and encourage new growth.
Plus, it’s an easy way to get more lavender for free instead of buying new plants.
1. Spring Weather Helps Roots Establish
Spring soil is cool and moist, which is ideal for new roots to settle in.
If you divide lavender in spring, the plant has the whole growing season to recover.
Dividing in fall can work too, but spring gives lavender more time to build strong roots before winter.
2. The Plant Is Actively Growing
When lavender starts pushing out new green growth in spring, it’s a sign the plant is ready to be divided.
Dividing lavender in spring means the plant’s energy is already focused on growth, so it bounces back fast.
You’ll see new shoots within a few weeks if you do it right.
3. You Avoid the Stress of Peak Summer
Dividing lavender in spring avoids the scorching heat of midsummer.
Lavender already struggles in high heat and humidity, so dividing it then would add unnecessary stress.
Spring division sets your lavender up for a strong, healthy season.
How to Divide Lavender in Spring Step by Step
Learning how to divide lavender in spring is all about timing and technique.
Here’s the process broken down so you can do it with confidence.
1. Water the Plant a Day Before
Give your lavender a good soak the day before you plan to divide it.
Moist soil holds together better and makes the root ball easier to lift without damaging it.
This one step makes dividing lavender in spring much less messy.
2. Dig Around the Root Ball
Use a sharp spade to dig a circle around the drip line of the plant.
Go slow and cut through the soil rather than yanking the plant out.
Once the root ball is loose, lift the whole plant out and set it on a tarp.
3. Split the Root Ball
Now it’s time to actually divide lavender in spring.
You can use two garden forks back to back to pry the root ball apart, or a sharp spade to cut through it.
Each division should have a good chunk of roots and several healthy stems.
Aim for two to three divisions from a mature plant.
4. Trim the Tops and Roots
Trim back about a third of the top growth on each division.
This reduces the demand on the roots while they re-establish.
Also snip away any dead or mushy roots before replanting.
5. Replant in Well-Draining Soil
Lavender hates wet feet, so pick a spot with sandy or gravelly soil and full sun.
Plant each division at the same depth it was growing before.
Water lightly and let the soil dry out between waterings.
Tips for Dividing Lavender in Spring Successfully
Getting the timing right is half the battle when you divide lavender in spring.
Here are a few extra tips to boost your success rate.
1. Divide Early in the Season
Aim to divide lavender in spring as soon as you see new growth but before the plant starts flowering.
Early spring division gives the roots maximum time to settle in.
2. Don’t Divide Sick or Weak Plants
Only divide lavender that’s healthy and vigorous.
If the plant is struggling, dividing it will likely finish it off.
Wait until it’s strong enough to handle the stress.
3. Keep the New Divisions Watered but Not Soaked
Newly divided lavender needs consistent moisture but never soggy soil.
Water deeply once a week if rain is scarce.
Too much water is the number one killer of freshly divided lavender.
4. Mulch with Gravel, Not Wood Chips
Lavender loves gravel mulch because it keeps the soil dry and reflects heat.
Wood chips hold moisture against the stems and can cause rot.
A little gravel around the base keeps your divisions happy.
5. Be Patient with Flowering
Don’t expect a big bloom the same year you divide lavender in spring.
The plant is putting energy into roots, not flowers.
By the next season, you’ll see a full, healthy plant with plenty of blooms.
So, How Do You Divide Lavender in Spring?
You divide lavender in spring by digging up a mature plant, splitting the root ball into sections, and replanting each division in well-draining soil.
Spring is the ideal time because the plant is actively growing and can recover quickly.
Just water the day before, split carefully, trim the tops, and give the new divisions plenty of sun.
With a little patience, your divided lavender will reward you with fresh growth and fragrant blooms for years.