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