Overwintering guide
How to overwinter cavolo nero
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 cavolo nero in winter
Leaving cavolo nero 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 cavolo nero care
Overwintering cavolo nero — FAQ
Does cavolo nero need to come indoors for winter?
Cavolo Nero is grown as an annual — it is frost-tender and naturally finishes at the end of the season, whatever your zone. In most climates cavolo nero 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 cavolo nero for winter?
Lift or take cuttings before the first frost — or let it finish and save seed.
How often should I water cavolo nero 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 cavolo nero over winter?
Leaving cavolo nero 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.