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