How to Winterize Lavender Plants (Do You Really Need to Cover Them?)

Lavender may be known for its summer beauty, but when the temperatures drop, many gardeners wonder how to keep their plants safe through the winter. Should you cover them? Just prune and leave them be? The truth is, there isn’t one universal answer — it depends on your climate, soil, and gardening style. Below, you'll read our quick and comprehensive opinions on winterization and covering your lavender plants in winter.

Winterizing Lavender Step One: The Fall Prune

The best way to set your lavender up for an stress-free winter is to start early. In the first weeks of fall, (before the first frost) give your plants a trim — cutting them back by about one-third. This simple step helps keep lavender from splitting, becoming too woody, or toppling under the weight of snow.

The Big Debate: To Cover or Not to Cover?

This is where gardeners split into two camps.

The Case for Covering

• In colder regions (zones 3–4 especially), covering lavender with breathable fabric, evergreen boughs, or frost cloth can help protect young plants from harsh winds and extreme cold.

• Covering helps reduce winter kill, especially if plants are newly planted and not fully established.

The Case Against Covering

• Lavender doesn’t like being smothered — excess moisture under covers can cause rot.

• Established plants in well-drained soil are generally tough enough to withstand normal winter conditions.

• In fact, many experienced growers find that covering creates more problems than it solves.

What We Do at Pumpkin Blossom Farm

Here in New Hampshire, we keep it simple: we prune in the fall and let nature take its course. Our plants are well established, and lavender’s hardy nature usually means it doesn’t need extra fuss.

That said, if you’re just starting your lavender patch, or if you live in an especially cold, windy, or wet area, a little extra protection for younger plants may give you peace of mind.

More Tips for Winter Success

• Well-Drained Soil Is Key: More lavender is lost to winter rot than cold. Plant in sandy, well-drained soil to prevent waterlogging.

• Mulch Sparingly When Needed: A light mulch of gravel or sand (not heavy organic mulch) helps insulate roots while keeping moisture levels balanced.

• Know Your Zone: French and Spanish lavenders are more tender than English lavender. Tailor your care to the variety you grow. We grow a hybrid lavender, also known as 'lavendin' that is a cross between Spanish spike lavender and English lavender. It is heartier than typical lavender, which helps it survive New England winters.

Final Thoughts

There’s no single right way to winterize lavender. Some gardeners swear by covers, while others (like us) take a minimalist approach. What matters most is healthy soil, a good fall prune, and choosing the right lavender variety for your growing zone.

With a little prep now, you’ll be rewarded with fragrant blooms come summer.