Growli

Overwintering guide

How to overwinter blue surprise cypress

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Blue Surprise Cypress is hardy to roughly USDA zone 5 — winter lows around -29°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 blue surprise cypress in winter

Cutting blue surprise cypress 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 blue surprise cypress care

Overwintering blue surprise cypress — FAQ

Does blue surprise cypress need to come indoors for winter?

Blue Surprise Cypress is hardy to roughly USDA zone 5 — winter lows around -29°C. That means it can stay outside all winter in most temperate gardens. Blue Surprise Cypress 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 blue surprise cypress for winter?

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

How often should I water blue surprise cypress in winter?

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

What kills blue surprise cypress over winter?

Cutting blue surprise cypress 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.