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