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How to Care for Perennial Lavender
To care for perennial lavender, you need to give it full sun, sharp drainage, and very little fuss.
Perennial lavender is a woody-based herb that comes back year after year when it’s planted in the right spot.
It hates wet feet, heavy clay, and rich soil more than anything else.
If you’ve been wondering how to care for perennial lavender without killing it, the secret is simple: think Mediterranean.
In this post, we’ll walk through how to care for perennial lavender, from planting and watering to pruning and overwintering.
Let’s dig in.
Why Perennial Lavender Needs Specific Care
Perennial lavender isn’t like your average garden plant.
It’s native to rocky, dry hillsides around the Mediterranean, so it evolved to survive on neglect.
That means the fastest way to kill perennial lavender is to baby it.
Here’s why perennial lavender has such particular needs.
1. It Craves Full Sun
Perennial lavender needs at least six to eight hours of direct sunlight every day.
Without enough sun, perennial lavender gets leggy, floppy, and prone to disease.
So the sunniest spot in your yard is always the best home for perennial lavender.
2. It Demands Sharp Drainage
The number one killer of perennial lavender is soggy roots.
Perennial lavender will rot fast if it sits in waterlogged soil, especially in winter.
That’s why sandy or gravelly soil is ideal for perennial lavender, and why raised beds work so well.
3. It Prefers Poor to Average Soil
Rich, fertile soil actually hurts perennial lavender.
Too many nutrients push leafy growth at the expense of flowers and essential oils.
So if you want fragrant perennial lavender, skip the compost and fertilizer.
How to Plant Perennial Lavender the Right Way
Getting perennial lavender off to a good start makes everything else easier.
Follow these steps so your perennial lavender settles in happily.
1. Pick the Perfect Spot
Choose a location with full sun and excellent air circulation for your perennial lavender.
Slopes and raised beds are great because they shed excess water naturally.
2. Amend Heavy Soil
If your soil is clay-heavy, mix in coarse sand or small gravel before planting perennial lavender.
You can also plant perennial lavender in a pot with a gritty, fast-draining mix.
3. Space Plants Properly
Give perennial lavender about 12 to 18 inches of space between plants.
Good airflow around perennial lavender prevents fungal issues before they start.
4. Plant in Spring or Early Fall
The best time to plant perennial lavender is spring or early fall.
This gives perennial lavender time to establish roots before extreme heat or cold.
Watering, Pruning, and Winter Care for Perennial Lavender
Once perennial lavender is established, it’s remarkably low-maintenance.
But a few habits keep perennial lavender thriving for years.
1. Water Deeply but Rarely
Newly planted perennial lavender needs regular water for the first season.
After that, perennial lavender is drought tolerant and only needs water during long dry spells.
Always let the soil dry out completely between waterings for perennial lavender.
2. Prune Every Year
Prune perennial lavender in early spring once new growth appears.
Cut back about one-third of the plant, but never into the old woody stems.
Lightly trimming perennial lavender after flowering also keeps it compact and tidy.
3. Skip the Fertilizer
Perennial lavender rarely needs feeding.
A little compost around the base in spring is plenty for perennial lavender.
Too much fertilizer makes perennial lavender weak, leggy, and short-lived.
4. Protect It in Winter
In cold climates, mulch perennial lavender with gravel or straw to prevent heaving.
Keep mulch away from the crown so moisture doesn’t collect and rot your perennial lavender.
Potted perennial lavender should move to a sheltered spot or garage over winter.
5. Watch for Pests and Disease
Perennial lavender is fairly pest resistant thanks to its strong scent.
But root rot and leaf spot can strike perennial lavender in humid, wet conditions.
Good drainage and airflow are your best defense for perennial lavender.
So, How Do You Care for Perennial Lavender?
To care for perennial lavender, give it full sun, gritty soil, and minimal water.
Perennial lavender thrives on neglect, not pampering, so don’t love it to death.
Plant perennial lavender in a sunny, well-drained spot, prune it yearly, and skip the fertilizer.
Do that, and your perennial lavender will reward you with fragrant blooms season after season.