How to prune French lavender (Stoechas): complete guide

Why prune French lavender?

French lavender (Lavandula stoechas) is a beautiful Mediterranean shrub with distinctive purple flowers and attractive grey-green foliage. Without regular pruning, the plant quickly becomes leggy, woody and produces far fewer flowers. Good pruning keeps your French lavender compact, fuller and blooming vibrantly for years longer.

Pruning stimulates new young growth, where the finest flowers appear. An unpruned specimen grows sparse, develops bare patches and nearly vanishes from your garden. With regular pruning you maintain a dense, floriferous plant that blooms from March through October.

The critical moment to prune

This is crucial: prune French lavender best in March or April when new leaves begin to emerge. You can then see exactly where fresh growth starts. Autumn pruning is fatal - the plant does not recover well before frost arrives. In summer remove only spent flower heads, nothing more.

Step 1: Remove all dead and diseased wood

First look for what is dead: branches without leaves, greyish or brownish stems that snap rather than bend. Cut these back entirely to healthy green wood. This can be quite aggressive. If more than a third of your plant is dead, your plant may not have overwintered well last year - French lavender hates wet winters.

Step 2: Cut back roughly one-third of the foliage

This is the main pruning step. Cut most branches (not all, but most) back to about 1/3 of their current length. If a branch is 30 cm long, cut it back to about 10 cm. Always cut just above a small leaf or visible growth point.

This sounds harsh, but French lavender grows fast. What you cut now is last year's wood and leafless at the top. You are really just removing the tired-looking parts.

Step 3: Shape as you go

While cutting, also shape the plant. French lavender easily becomes taller than wide. Cut the top slightly shorter (prune more aggressively) than the sides. This gives the plant a nice, rounded silhouette rather than a drooping form.

Timing: March, not September

• March-April: Ideal. The plant is waking up, beginning to leaf, and recovers fast.
• June-July: Only remove spent flowers, no general pruning.
• September-October: Do not prune. The plant has no time for strong regrowth.
• December-February: Absolutely not. Frost will kill new growth.

Watering after pruning

After pruning, do not give the plant excess water. French lavender hates wet feet. Water only deeply and sparingly. Ensure the soil drains well. In rainy climates, mix sand into the soil so water drains faster.

Age for first pruning?

A newly planted French lavender (first season) you do not prune. Let it establish. From the second season onward (March of year two) begin regular pruning.

Frequently asked questions

My French lavender is overgrown and bare at the base. Can I save it?

Yes, but carefully. Prune it much harder (cut by half), but not down to thick wood. French lavender can regrow from the roots if you do not overdo it. Be patient next season - it grows back slowly.

When exactly in March should I prune?

When you see the first new, bright green leaves appearing. For most regions that is early March. In colder areas: late March.

My plant froze last winter. What now?

Wait until frost is past, stop watering, and cut away all dead wood once temperatures rise. Your plant may regrow from the roots. Be patient.

I have very little space. Can it grow in a pot?

Yes, smaller specimens thrive in pots (at least 20-25 liters). In pots moisture control feels easier (drainage holes!). Pruning works the same.

How many years before a plant becomes overgrown?

If pruned well? 10-15 years without issue. Unpruned? 3-4 years, then replacement time.

Step-by-step

Step 1: Inspect your plant in March

Look at what wood is dead, which branches still live. Find fresh green foliage.

Step 2: Remove dead wood

Cut away everything grey, dry or brittle completely.

Step 3: Cut back growth

Cut roughly 30% of the foliage back. Aim for shape, not just height.

Step 4: Water sparingly

Do not water more after pruning. Let growth happen. By May-June flowering will resume.

Cultivars and small differences

Lavandula stoechas (Purple Spanish): Most winter hardy, excellent for pruning.

Lavandula stoechas ssp. pedunculata: Grows slightly more vigorously, more tolerant of hard pruning.

Lavandula stoechas 'Helmsdale': Compact variety, less aggressive pruning needed.

Lavandula stoechas 'Avonview': Blooms very long, excellent for shaping pruning.

Frequently asked questions

Help, my plant looks grey and dull!

That is usually old foliage underneath. Prune it hard (cut by half). Let it grow and the main flowers will return to color.

Can I harvest French lavender sprigs for tea?

Not really. The flowers are edible, but not suitable for tea like English lavender. Just cut your flowers for nice arrangements.

Will French lavender survive in my climate?

It depends. Down to -10 degrees Celsius is fine. Below that: cover the plant or pot it up and move to shelter. Wet winters are worse than frost.

Discover your garden design

At [gardenworld.app](https://gardenworld.app) you can upload your front yard and see how French lavender fits with other Mediterranean plants. Visualize your blooming garden before you plant and prune.