Growli

Overwintering guide

How to overwinter engraved cone plant

Verdict
Keep frost-free
When
Move under cover before the first hard frost; back outside after the last spring frost.
Hardiness
Engraved Cone Plant 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 engraved cone plant in winter

Bringing engraved cone plant 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 engraved cone plant care

Overwintering engraved cone plant — FAQ

Does engraved cone plant need to come indoors for winter?

Engraved Cone Plant is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Engraved Cone Plant 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 engraved cone plant for winter?

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

How often should I water engraved cone plant in winter?

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

What kills engraved cone plant over winter?

Bringing engraved cone plant 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.