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Overwintering guide

How to overwinter siberian carpet cypress

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Siberian Carpet Cypress is hardy to roughly USDA zone 3 — winter lows around -40°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 siberian carpet cypress in winter

Cutting siberian carpet 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 siberian carpet cypress care

Overwintering siberian carpet cypress — FAQ

Does siberian carpet cypress need to come indoors for winter?

Siberian Carpet Cypress is hardy to roughly USDA zone 3 — winter lows around -40°C. That means it can stay outside all winter in most temperate gardens. Siberian Carpet 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 siberian carpet cypress for winter?

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

How often should I water siberian carpet cypress in winter?

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

What kills siberian carpet cypress over winter?

Cutting siberian carpet 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.