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