This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. If you click a link and make a purchase, I may receive a small commission at no extra cost to you.
Yes, you can divide English lavender, and it’s actually one of the best ways to keep your plants healthy and vigorous.
If you’ve been wondering whether you can divide English lavender to create more plants or to rejuvenate an older, woody specimen, the simple answer is a confident yes.
But here’s the catch: dividing English lavender isn’t quite as straightforward as splitting a hosta or a daylily, so you’ll want to know the right timing and technique before you grab your spade.
Many gardeners worry that dividing English lavender will kill the plant, and that fear isn’t entirely unfounded if you do it wrong.
However, when you divide English lavender at the right moment and care for the divisions properly, you can multiply your fragrant supply and keep your garden looking lush for years.
In this post, we’ll explore whether you can divide English lavender successfully, the best time to divide English lavender, step-by-step instructions, and common pitfalls to avoid.
Let’s dig into the details so you can confidently divide English lavender in your own garden.
Why You Can Divide English Lavender
English lavender is a hardy perennial, and like many perennials, it responds well to division under the right conditions.
The key reason you can divide English lavender is that it develops a woody base with multiple stems emerging from a central crown, and each viable stem section can potentially root on its own.
That said, English lavender doesn’t have a fibrous root system like many easy-to-divide perennials, so the process requires a bit more care.
Let’s break down the main factors that make dividing English lavender possible and successful.
1. The Plant’s Natural Growth Habit
English lavender grows as a low, spreading shrub with a central woody crown that sends out leafy shoots each season.
Over time, this crown can become large and congested, with the center dying out while the outer edges remain active and green.
When you divide English lavender, you’re essentially taking those active outer sections, each with roots attached, and giving them fresh space to grow.
This works best on younger plants, typically those between two and five years old, because their wood is still flexible and their root systems are robust enough to handle the shock.
Older, heavily woody lavender can still be divided, but it’s riskier and may not always produce strong new plants.
2. Timing Is Everything
The single most important thing to know is that you can divide English lavender only at specific times of the year, and getting this wrong is the most common reason for failure.
The ideal window to divide English lavender is early spring, just as new growth begins to appear at the base of the plant.
This timing gives the divisions a full growing season to establish roots before winter arrives.
You can also divide English lavender in early autumn in milder climates, but spring is safer because the plants have plenty of time to recover.
Avoid dividing English lavender during the heat of summer or the depths of winter, as extreme temperatures will stress the plants and reduce survival rates.
3. Age and Health of the Parent Plant
Not every English lavender plant is a good candidate for division, so it’s smart to assess the plant’s health first.
You can divide English lavender successfully if the plant is vigorous, disease-free, and shows plenty of fresh growth around the edges.
If your lavender is old, woody, and mostly dead in the center, you may still be able to divide English lavender, but each division will likely be smaller and weaker.
A good rule of thumb is to check for at least several healthy stems with their own roots before you attempt to divide English lavender.
This is why many experts recommend propagating English lavender from cuttings instead when dealing with very old specimens.
But for the average garden lavender that’s gotten a bit too big, division is a perfectly viable option.
How to Divide English Lavender Step by Step
Now that you know you can divide English lavender and when to do it, let’s walk through the actual process so you don’t damage your plant.
The goal is to minimize root disturbance while maximizing the chances that each new division will survive and thrive.
1. Prepare the New Planting Spots First
Before you even lift your lavender, dig holes for the new divisions in well-draining soil with plenty of sunlight.
English lavender hates wet feet, so if your soil is heavy clay, mix in some grit or sand to improve drainage.
Having the holes ready means you can transplant each division immediately, which reduces the time the roots spend exposed to the air.
2. Lift the Entire Plant Carefully
Use a garden fork to gently loosen the soil all around the lavender, then lift the whole plant out of the ground.
Try to keep as much of the root ball intact as possible during this step.
Once it’s out, shake off the excess soil so you can see the root structure clearly.
3. Split the Crown Into Sections
Look for natural divisions in the crown where stems and roots are already grouped together.
You can often pull these sections apart with your hands if the plant is young and flexible.
For older plants, you may need a clean, sharp knife or even a spade to cut through the woody crown.
Each division should have at least three to five healthy stems and a decent portion of roots attached to it.
4. Plant the Divisions Right Away
Place each division into its prepared hole at the same depth it was growing before, and firm the soil gently around the roots.
Water generously after planting to settle the soil, but don’t let the lavender sit in soggy conditions afterward.
Mulching with gravel or small stones around the base can help keep the crown dry, which lavender absolutely loves.
5. Aftercare for Your New Divisions
For the first few weeks, keep the soil lightly moist to help the roots establish, but once new growth appears, cut back on watering.
You can divide English lavender and expect strong plants if you give them full sun and avoid overwatering during that critical establishment period.
It’s also wise to trim back the foliage by about one-third after planting to reduce water loss from leaves while the roots are recovering.
Common Mistakes When You Divide English Lavender
Even if you know that you can divide English lavender, making one of these mistakes can still doom your efforts.
Let’s look at the pitfalls so you can avoid them and get the best possible results.
1. Dividing at the Wrong Time
If you divide English lavender in late spring or summer, the heat will likely stress the new divisions beyond recovery.
Stick to early spring or early autumn, and always avoid dividing during a drought or a heatwave.
2. Dividing Old, Wooden Plants Without Care
Old lavender with a massive woody base often doesn’t root well from division because those woody sections lack the active growth points needed for new roots.
If you absolutely must divide English lavender that’s very old, take larger divisions with more roots, and be prepared for lower success rates.
3. Overwatering After Transplanting
It’s tempting to give your new lavender divisions lots of water to help them settle, but that’s a fast track to root rot.
English lavender is a Mediterranean plant, meaning it thrives in dry, sunny conditions and poorly in soggy soil.
Water once deeply after planting, then let the top inch of soil dry out before watering again.
4. Skipping the Foliage Trim
If you don’t trim the top growth after dividing English lavender, the roots will struggle to support all those leaves.
This can lead to wilting and even death of the division.
A light trim encourages the plant to focus its energy on root development instead of maintaining too much foliage.
So, Can You Divide English Lavender?
Yes, you can divide English lavender successfully if you follow the right techniques and timing.
You can divide English lavender to rejuvenate an overgrown plant, create more plants for your garden, or share with friends and neighbors.
The absolute best time to divide English lavender is early spring when new growth appears, and you’ll have the highest chance of success with younger, healthier plants.
Remember to lift carefully, split the crown into sections with roots attached, plant immediately in well-draining soil, and keep watering light but consistent during establishment.
By avoiding the common mistakes like wrong-season division and heavy-handed watering, you’ll give your new lavender the best shot at thriving.
So grab your fork, pick a mild spring day, and go ahead—you can divide English lavender and enjoy even more of that calming, silvery-green beauty in your garden.
Happy planting, and may your lavender grow as fragrant and full as ever!