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Lavender does grow on old wood, but only in a very specific way.
If you’ve ever wondered does lavender grow on old wood, the short answer is yes, new growth can emerge from older stems, but it’s not the ideal situation for the plant.
Lavender is a woody perennial, which means its stems become tough and brown over time.
The key is understanding how lavender grows on old wood and what that means for pruning and overall plant health.
In this post, we’ll explore whether lavender grows on old wood, why it matters, and how to care for your plant so it thrives for years.
Does Lavender Grow on Old Wood?
Yes, lavender can grow on old wood, but there’s a catch.
When we talk about lavender growing on old wood, we’re referring to the ability of the plant to produce new shoots from older, woody stems.
Unlike many herbaceous perennials that die back to the ground each year, lavender keeps its woody framework.
This woody structure is what allows lavender to survive through winters and come back stronger each spring.
1. New Growth Emerges from Green Wood, Not Brown Wood
Here’s the thing about lavender growing on old wood.
New growth typically emerges from the greener, softer stems rather than the hard, brown, woody parts.
If you cut lavender back into the brown, leafless wood, it often won’t regenerate.
This is why knowing whether lavender grows on old wood matters so much when you’re pruning.
The plant can only push out new shoots from wood that still has some life in it, usually the parts that are green or have visible buds.
2. Some Lavender Varieties Tolerate Old Wood Better
Not all lavender plants respond the same way to old wood.
English lavender (Lavandula angustifolia) is more forgiving when it comes to growing on old wood compared to French or Spanish lavender.
These varieties tend to be hardier and can sometimes sprout from older stems if pruned carefully.
So if you’re asking does lavender grow on old wood, the answer depends partly on the type you’re growing.
English lavender is your best bet if you want a plant that handles older wood gracefully.
3. Age Matters for Lavender Growing on Old Wood
Young lavender plants are much more flexible about growing on old wood.
A two or three-year-old plant still has plenty of green wood and can bounce back from pruning easily.
But as lavender ages, the wood becomes harder and less capable of producing new growth.
That’s why regular pruning is essential to keep lavender from becoming too woody.
If you let lavender grow on old wood without intervention, you’ll end up with a leggy, bare plant that flowers less each year.
Why Lavender Growing on Old Wood Can Be a Problem
While lavender does grow on old wood to some extent, relying on it isn’t a good long-term strategy.
Here’s why you should avoid letting your lavender become too woody.
1. Woody Stems Produce Fewer Flowers
Old wood on lavender is less productive than young, vigorous growth.
When lavender grows on old wood, the flowering spikes tend to be smaller and less abundant.
That’s because the plant’s energy is focused on maintaining the woody structure rather than producing new blooms.
If you want a lavender plant covered in fragrant flowers, you need to encourage fresh growth.
2. Woody Lavender Becomes Leggy and Sparse
Another issue with lavender growing on old wood is that it often leads to a leggy appearance.
The plant develops a bare, woody center with foliage only at the tips of the branches.
This happens because the older wood stops producing new leaves and shoots, leaving gaps in the plant’s structure.
Regular pruning helps prevent this by stimulating growth from the greener parts of the plant.
3. Old Wood Is More Susceptible to Disease
Lavender growing on old wood is also more vulnerable to pests and diseases.
The dense, woody structure can trap moisture, which creates the perfect environment for fungal issues like root rot or botrytis.
Plus, old wood doesn’t heal as quickly from damage, making it easier for pathogens to enter.
Keeping your lavender youthful and well-pruned is the best way to avoid these problems.
How to Prune Lavender So It Doesn’t Rely on Old Wood
The best way to manage lavender growing on old wood is through proper pruning.
Here’s how to do it right.
1. Prune Lightly Every Year After Flowering
The key to preventing lavender from becoming too woody is annual pruning.
After the flowers fade in late summer, trim back about one-third of the plant’s growth.
Make sure you’re cutting into green, leafy stems rather than the brown, woody base.
This encourages the plant to produce fresh shoots and keeps lavender growing on old wood to a minimum.
2. Avoid Cutting into Hard, Brown Wood
This is the golden rule of lavender pruning.
Never cut back into the old, brown wood that has no leaves or green stems.
If you do, the plant may not recover because lavender growing on old wood is limited.
Stick to trimming the soft, green growth, and your lavender will stay healthy and productive.
3. Rejuvenate Older Plants Gradually
If your lavender has already become woody, don’t panic.
You can try to rejuvenate it by pruning back one-third of the old wood over three years.
This gives the plant time to produce new growth without going into shock.
It’s a slow process, but it can help you salvage a lavender plant that’s been growing on old wood for too long.
So, Does Lavender Grow on Old Wood?
Yes, lavender does grow on old wood, but it’s not something you should rely on.
New growth mostly comes from green, flexible stems, while the older wood has limited ability to regenerate.
The best way to keep your lavender thriving is through regular pruning that encourages fresh growth and prevents the plant from becoming too woody.
By understanding how lavender grows on old wood and managing it properly, you can enjoy a beautiful, fragrant plant for many years.
Whether you’re a seasoned gardener or just starting out, knowing the answer to does lavender grow on old wood will help you care for your plants with confidence.