Overwintering guide
How to overwinter alocasia portora
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 alocasia portora in winter
Bringing alocasia portora 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 alocasia portora care
Overwintering alocasia portora — FAQ
Does alocasia portora need to come indoors for winter?
Alocasia Portora is hardy to roughly USDA zone 9 — winter lows around -7°C. That means it takes cool conditions but not a real freeze. Alocasia Portora 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 alocasia portora for winter?
Move under cover before the first hard frost; back outside after the last spring frost.
How often should I water alocasia portora in winter?
Water only occasionally — enough that the rootball never dries out completely, no more. No feeding until spring growth begins.
What kills alocasia portora over winter?
Bringing alocasia portora 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.