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You can plant lavender about 12 to 18 inches apart for a dense hedge, or 18 to 24 inches apart for a looser, more breathable look.
If you’re wondering how close to plant lavender for a hedge, the answer really depends on the variety you choose and how fast you want your hedge to fill in.
English lavender typically needs a bit more room than the compact French or Spanish types.
In this post, we’ll walk through exactly how close to plant lavender for a hedge, plus the spacing, soil, and timing tips that make all the difference.
Let’s dig in.
How Close to Plant Lavender for a Hedge
Planting lavender close enough for a hedge is all about giving each plant room to breathe while still letting them knit together.
Here’s how to think about the spacing.
1. The General Spacing Rule
For most lavender hedges, plant your starts about 12 to 18 inches apart.
This is the sweet spot if you want a hedge that fills in within a season or two.
If you’d rather save money on plants and don’t mind waiting, you can push it to 18 to 24 inches.
The closer you plant lavender for a hedge, the faster the gaps close.
2. Match Spacing to Your Variety
Not all lavender grows the same width, so how close to plant lavender for a hedge changes with the type.
English lavender (Lavandula angustifolia) grows into tidy mounds about 18 to 24 inches wide, so 15 to 18 inches apart works well.
French and Spanish lavender spread wider and looser, so give them 18 to 24 inches.
Dwarf varieties like ‘Hidcote’ or ‘Munstead’ stay compact and can go as close as 12 inches.
3. Why You Shouldn’t Plant Too Close
It’s tempting to squeeze lavender together for an instant hedge, but planting too close causes real problems.
Lavender hates wet feet and needs airflow around its stems.
When plants are crammed together, moisture gets trapped, and root rot or fungal disease can move in fast.
So plant lavender for a hedge with a little breathing room, and you’ll get healthier, longer-lived plants.
When and Where to Plant Lavender for a Hedge
Getting the timing and location right sets your hedge up for success from day one.
1. Plant in Spring or Early Fall
The best time to plant lavender for a hedge is spring after the last frost, or early fall while the soil is still warm.
This gives roots time to settle before extreme heat or cold hits.
Avoid planting in the middle of summer when stress is highest.
2. Choose Full Sun
Lavender needs at least six to eight hours of direct sun to grow dense and flower well.
If you plant lavender for a hedge in partial shade, you’ll get leggy, sparse growth and fewer blooms.
A south-facing spot is usually ideal.
3. Get the Soil Right
Lavender thrives in sandy, well-draining soil with a slightly alkaline to neutral pH.
If your soil is heavy clay, amend it with grit or plant on a slight mound.
Good drainage matters more than almost anything else when you plant lavender for a hedge.
Tips for a Full, Healthy Lavender Hedge
Once your lavender is in the ground, a few habits keep the hedge looking sharp.
1. Water Deeply but Infrequently
New plants need regular water for the first few weeks.
After that, lavender is drought-tolerant and prefers to dry out between waterings.
Overwatering is the number one killer of lavender hedges.
2. Prune After Flowering
Lightly trim your hedge right after the blooms fade.
This keeps the plants bushy and prevents them from getting woody.
Never cut back into old, leafless wood, because it rarely regrows.
3. Leave Room for Airflow
Even in a tight hedge, each plant needs space for air to move through.
This is the real reason how close to plant lavender for a hedge matters so much.
Airflow keeps foliage dry and reduces disease.
So, How Close to Plant Lavender for a Hedge?
How close to plant lavender for a hedge comes down to 12 to 18 inches for a dense hedge, or up to 24 inches for a more relaxed one.
Match the spacing to your variety, plant in full sun with well-draining soil, and give each plant room to breathe.
Do that, and you’ll have a fragrant, healthy lavender hedge that thrives for years.