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