Your Cool Home is supported by its readers. Please assume all links are affiliate links. If you purchase something from one of our links, we make a small commission from Amazon. Thank you!
What to do with French lavender after flowering starts with one simple step: prune it.
Once those beautiful purple blooms fade, your French lavender (Lavandula stoechas) needs a little attention to stay healthy and keep flowering.
If you leave it alone, it can get woody and leggy, and you’ll end up with a plant that looks tired rather than tidy.
In this post, we’ll walk through exactly what to do with French lavender after flowering, from deadheading to pruning, and even how to use those lovely flower spikes.
Let’s keep your lavender happy and blooming for seasons to come.
Why Pruning French Lavender After Flowering Matters
French lavender is a bit different from English lavender, and knowing how to treat it after flowering makes a big difference.
Here’s why giving your French lavender some post-flowering care is so important:
1. It Prevents the Plant from Going Woody
French lavender has a tendency to become woody at the base if it isn’t pruned regularly.
When you prune French lavender after flowering, you encourage fresh green growth to come through.
This keeps the plant bushy instead of bare and twiggy at the bottom.
2. It Encourages More Blooms
Deadheading your French lavender after flowering tells the plant to put energy into new flowers rather than seed production.
With the right pruning, you can often get a second flush of blooms later in the season.
That means more of those gorgeous purple flower heads for you to enjoy.
3. It Keeps the Plant Healthy and Airy
After flowering, French lavender can get crowded with old growth.
Removing spent blooms and some foliage improves airflow, which helps prevent fungal issues like root rot or mildew.
A healthy French lavender after flowering is one that has room to breathe.
How to Prune French Lavender After Flowering
Pruning French lavender after flowering isn’t complicated, but timing and technique matter.
Here’s how to do it right:
1. Wait Until the Flowers Have Faded
The best time to start is when the flower heads turn brown and dry out.
Don’t rush it; let the French lavender finish its flowering cycle first.
Once the blooms are spent, you’re clear to begin.
2. Deadhead the Spent Flower Spikes
Use a pair of clean, sharp snips to cut off the faded flower spikes.
Trim them back to just above the first set of leaves on the stem.
This is the gentlest way to start what to do with French lavender after flowering.
3. Give It a Light Shape-Up
After deadheading, you can lightly trim the overall shape of the plant.
Aim to remove about one-third of the green growth, but never cut into the old woody stems.
That wood often won’t regrow, and cutting too far back can harm your French lavender.
4. Avoid Cutting into Old Wood
This is the golden rule when pruning French lavender after flowering.
Always leave a few sets of leaves on each stem you cut.
If you cut back to bare wood, the plant may struggle to recover or stop growing altogether.
Using French Lavender Flowers After Flowering
Don’t just toss those faded flower spikes; there’s plenty you can do with them.
Here are some of my favorite ways to make the most of French lavender after flowering:
1. Dry Them for Sachets
Bundle the cut flower stems and hang them upside down in a cool, dark place.
Once dry, you can strip the buds and sew them into little sachets for drawers and closets.
The scent of dried French lavender after flowering can last for months.
2. Make Lavender Oil or Vinegar
You can infuse olive oil or white vinegar with the dried flowers to create your own home products.
Just fill a jar with flowers, cover with oil or vinegar, and let it sit for a few weeks.
Strain and bottle it for use in cooking or as a natural cleaner.
3. Add Them to Potpourri
Mix dried French lavender flowers with other dried botanicals like rose petals or rosemary.
Place the mix in a bowl to freshen up a room naturally.
It’s a lovely way to keep enjoying your French lavender after flowering has finished.
Common Mistakes to Avoid with French Lavender After Flowering
Even with the best intentions, it’s easy to make a few missteps.
Here’s what to watch out for:
1. Pruning Too Late in the Season
If you prune French lavender too late in autumn, new growth may not harden off before winter.
This can lead to frost damage and dieback.
Aim to finish your pruning right after the main flowering period.
2. Cutting Back Too Hard
As mentioned, never cut into the old wood.
French lavender after flowering should be trimmed lightly, not scalped.
If you’re unsure, it’s better to take off less than more.
3. Forgetting to Water Wisely
After pruning, water your French lavender deeply but let the soil dry out between waterings.
Overwatering is a bigger killer than underwatering for this plant.
Good drainage is essential for French lavender to thrive after flowering.
So, What to Do with French Lavender After Flowering?
What to do with French lavender after flowering boils down to timely pruning, light shaping, and a bit of creativity with the spent blooms.
By deadheading and trimming your French lavender after flowering, you keep it compact, healthy, and ready to bloom again.
And with those dried flowers, you can bring a little lavender magic into your home.
Take care of your French lavender after flowering, and it will reward you with beauty and fragrance for many seasons.