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How far apart you plant lavender for a hedge depends on the variety you choose and the density you want.
Generally, most lavender plants should be spaced 12 to 18 inches apart for a tight, formal hedge.
For a looser, more natural look, you can space them 18 to 24 inches apart.
The key is understanding how wide your specific lavender variety will grow at maturity.
In this post, we’ll explore how far apart to plant lavender for a hedge, the best varieties for hedging, and the factors that affect spacing.
Let’s dig in.
How Far Apart Do You Plant Lavender for a Hedge?
The short answer is that you plant lavender for a hedge 12 to 18 inches apart for most English and French varieties.
But the exact distance depends on a few important factors.
1. Consider the Mature Width of Your Lavender Variety
Before you plant lavender for a hedge, check the mature width of your chosen variety.
English lavender (Lavandula angustifolia) typically grows 18 to 24 inches wide.
French lavender (Lavandula stoechas) can spread 24 to 36 inches wide.
Spanish lavender (Lavandula dentata) often reaches 24 to 30 inches wide.
If you plant lavender too close, the plants will compete for air and sunlight.
That leads to poor airflow and increases the risk of root rot and fungal disease.
A good rule is to space lavender so the mature plants just barely touch.
That way, you get a continuous hedge without overcrowding.
2. Decide How Dense You Want the Hedge
When you plant lavender for a hedge, the spacing determines how solid the hedge looks.
For a formal, tight hedge, plant lavender 12 inches apart.
This close spacing fills in quickly and creates a solid wall of color.
For a looser, cottage-style hedge, space lavender 18 to 24 inches apart.
This gives each plant room to breathe and show its natural shape.
Just remember that wider spacing means the hedge takes longer to fill in.
3. Account for Your Climate and Growing Conditions
How far apart you plant lavender for a hedge also depends on your climate.
In humid regions, plant lavender farther apart to improve airflow.
Good airflow is critical because lavender hates wet feet and stagnant air.
In dry, hot climates, you can plant lavender closer together.
The plants won’t struggle as much with moisture-related problems.
Also, if your soil drains poorly, space lavender wider and amend the soil.
Adding grit or sand to the planting hole helps lavender thrive.
Best Lavender Varieties for Hedging
Not all lavender works well as a hedge.
Here are the best varieties to plant lavender for a hedge:
1. English Lavender (Lavandula angustifolia)
English lavender is the classic choice for hedges.
Varieties like ‘Hidcote’ and ‘Munstead’ grow compact and uniform.
They bloom in early to mid-summer and smell amazing.
Space English lavender 12 to 15 inches apart for a dense hedge.
2. French Lavender (Lavandula stoechas)
French lavender has distinctive butterfly-shaped flowers.
It blooms longer than English lavender but is less cold-hardy.
French lavender grows wider, so space it 18 to 24 inches apart.
3. Spanish Lavender (Lavandula dentata)
Spanish lavender thrives in hot, dry climates.
It has gray-green foliage and blooms nearly year-round in warm areas.
Space Spanish lavender 18 to 24 inches apart for a hedge.
Tips for Planting Lavender as a Hedge
Once you know how far apart to plant lavender for a hedge, follow these tips.
1. Plant in Well-Draining Soil
Lavender needs sandy or gravelly soil that drains fast.
If your soil is heavy clay, amend it with grit or plant in raised beds.
2. Choose a Sunny Spot
Lavender needs at least 6 to 8 hours of full sun daily.
Without enough sun, plants get leggy and produce fewer flowers.
3. Water Deeply but Infrequently
Newly planted lavender needs regular water to establish roots.
Once established, lavender is drought-tolerant and needs little water.
4. Prune After Flowering
Prune lavender lightly after blooming to keep the hedge tidy.
Don’t cut into old wood because it won’t regrow.
So, How Far Apart Do You Plant Lavender for a Hedge?
You plant lavender for a hedge 12 to 18 inches apart for most varieties.
For a tighter hedge, space lavender 12 inches apart.
For a looser hedge, space lavender 18 to 24 inches apart.
Always consider the mature width of your variety, your climate, and your soil.
With the right spacing, your lavender hedge will thrive and look stunning.