Growli

Overwintering guide

How to overwinter red angel's trumpet

Verdict
Keep frost-free
When
Move under cover before the first hard frost; back outside after the last spring frost.
Hardiness
Red Angel's Trumpet 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 red angel's trumpet in winter

Bringing red angel's trumpet 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 red angel's trumpet care

Overwintering red angel's trumpet — FAQ

Does red angel's trumpet need to come indoors for winter?

Red Angel's Trumpet is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Red Angel's Trumpet 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 red angel's trumpet for winter?

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

How often should I water red angel's trumpet in winter?

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

What kills red angel's trumpet over winter?

Bringing red angel's trumpet 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.