Overwintering guide
How to overwinter night sky petunia
Winter watering
If you do keep it going indoors, water sparingly — just enough that the compost never dries out completely — and do not feed until growth restarts in spring.
The mistake that kills night sky petunia in winter
Leaving night sky petunia outside over winter expecting it back in spring. As an annual it will not return — seed or cuttings are the only way to carry it forward.
More night sky petunia care
Overwintering night sky petunia — FAQ
Does night sky petunia need to come indoors for winter?
Night Sky Petunia is grown as an annual — it is frost-tender and naturally finishes at the end of the season, whatever your zone. In most climates night sky petunia is grown as an annual, so there is usually nothing to overwinter — the plant completes its life cycle and dies back with the first frosts. If you want to carry it over, lift it before the first frost and grow it on in the brightest window you have, or take cuttings; otherwise collect seed and start fresh in spring, which is what most growers do.
When should I move night sky petunia for winter?
Lift or take cuttings before the first frost — or let it finish and save seed.
How often should I water night sky petunia in winter?
If you do keep it going indoors, water sparingly — just enough that the compost never dries out completely — and do not feed until growth restarts in spring.
What kills night sky petunia over winter?
Leaving night sky petunia outside over winter expecting it back in spring. As an annual it will not return — seed or cuttings are the only way to carry it forward.