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