Growli

Overwintering guide

How to overwinter profusion orange zinnia

Verdict
Stays outside
When
Tidy and mulch in late autumn; leave the plant undisturbed until spring.
Hardiness
Profusion orange zinnia is hardy to roughly USDA zone 2 — winter lows around -46°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 profusion orange zinnia in winter

Cutting profusion orange zinnia 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 profusion orange zinnia care

Overwintering profusion orange zinnia — FAQ

Does profusion orange zinnia need to come indoors for winter?

Profusion orange zinnia is hardy to roughly USDA zone 2 — winter lows around -46°C. That means it can stay outside all winter in most temperate gardens. Profusion orange zinnia 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 profusion orange zinnia for winter?

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

How often should I water profusion orange zinnia in winter?

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

What kills profusion orange zinnia over winter?

Cutting profusion orange zinnia 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.