Growli

Overwintering guide

How to overwinter irish heath irish dusk

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Irish Heath Irish Dusk is hardy to roughly USDA zone 7 — winter lows around -18°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 irish heath irish dusk in winter

Cutting irish heath irish dusk 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 irish heath irish dusk care

Overwintering irish heath irish dusk — FAQ

Does irish heath irish dusk need to come indoors for winter?

Irish Heath Irish Dusk is hardy to roughly USDA zone 7 — winter lows around -18°C. That means it can stay outside all winter in most temperate gardens. Irish Heath Irish Dusk 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 irish heath irish dusk for winter?

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

How often should I water irish heath irish dusk in winter?

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

What kills irish heath irish dusk over winter?

Cutting irish heath irish dusk 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.