Growli

Overwintering guide

How to overwinter orache-leaved sun rose

Verdict
Keep frost-free
When
Move under cover before the first hard frost; back outside after the last spring frost.
Hardiness
Orache-Leaved Sun Rose is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze.

Winter watering

Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.

The mistake that kills orache-leaved sun rose in winter

Bringing orache-leaved sun rose into a warm living room. Too much winter warmth forces weak, pale growth that collapses when it goes back outside — cool and bright beats warm and dim.

More orache-leaved sun rose care

Overwintering orache-leaved sun rose — FAQ

Does orache-leaved sun rose need to come indoors for winter?

Orache-Leaved Sun Rose is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Orache-Leaved Sun Rose will take cool conditions but not a hard freeze, so the aim is a frost-free winter rather than a warm one. An unheated greenhouse, porch, conservatory or bright garage all work well. Keep it cool, bright and on the dry side, and it will hold steady until growth restarts in spring.

When should I move orache-leaved sun rose for winter?

Move under cover before the first hard frost; back outside after the last spring frost.

How often should I water orache-leaved sun rose in winter?

Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.

What kills orache-leaved sun rose over winter?

Bringing orache-leaved sun rose into a warm living room. Too much winter warmth forces weak, pale growth that collapses when it goes back outside — cool and bright beats warm and dim.