Growli

Overwintering guide

How to overwinter broad-leaved lavender

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Broad-Leaved Lavender is hardy to roughly USDA zone 6 — winter lows around -23°C. That means it can stay outside all winter in most temperate gardens.

Winter watering

No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.

The mistake that kills broad-leaved lavender in winter

Cutting broad-leaved lavender hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.

More broad-leaved lavender care

Overwintering broad-leaved lavender — FAQ

Does broad-leaved lavender need to come indoors for winter?

Broad-Leaved Lavender is hardy to roughly USDA zone 6 — winter lows around -23°C. That means it can stay outside all winter in most temperate gardens. Broad-Leaved Lavender is properly hardy and overwinters outside without fuss. Tidy away anything dead or diseased, apply a mulch over the crown to steady soil temperatures, and otherwise leave it alone — many hardy plants actually need a cold period to flower and grow well the following year. Save hard pruning for the right season rather than doing it in autumn.

When should I move broad-leaved lavender for winter?

Tidy and mulch in late autumn; leave the plant undisturbed until spring.

How often should I water broad-leaved lavender in winter?

No winter watering needed in open ground. Containers only need water in long dry, frost-free spells.

What kills broad-leaved lavender over winter?

Cutting broad-leaved lavender hard back in autumn "to tidy up". That removes the growth that shelters the crown, and on some plants removes next season's flower buds entirely.