Overwintering guide
How to overwinter ctenanthe setosa 'grey star'
Winter watering
Cut watering right back — ctenanthe setosa 'grey star' uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.
The mistake that kills ctenanthe setosa 'grey star' in winter
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and ctenanthe setosa 'grey star' rots from the base.
More ctenanthe setosa 'grey star' care
- Overwintering calathea setosa — the species this cultivar belongs to
- Full ctenanthe setosa 'grey star' care guide
- Ctenanthe Setosa 'Grey Star' temperature range
- How often to water ctenanthe setosa 'grey star'
- How to prune ctenanthe setosa 'grey star'
- Common ctenanthe setosa 'grey star' problems & fixes
- Best plant identifier apps — tested and ranked
Overwintering ctenanthe setosa 'grey star' — FAQ
Does ctenanthe setosa 'grey star' need to come indoors for winter?
Ctenanthe Setosa 'Grey Star' is hardy to roughly USDA zone 11 — winter lows around 4°C. That means it will not survive frost and needs to come inside. Ctenanthe Setosa 'Grey Star' is frost-tender, so overwintering means bringing it inside and letting it rest rather than pushing it to grow. Move it indoors well before the first frost, give it the brightest spot you have (light levels indoors drop sharply in winter), and keep it away from both cold window glass and hot radiators — the swing between the two does more damage than the cold itself.
When should I move ctenanthe setosa 'grey star' for winter?
Bring indoors when nights start dropping below about 10°C, ahead of the first frost.
How often should I water ctenanthe setosa 'grey star' in winter?
Cut watering right back — ctenanthe setosa 'grey star' uses far less while growth slows, and cold, wet compost is the usual cause of winter root rot. Stop feeding until spring.
What kills ctenanthe setosa 'grey star' over winter?
Watering on the same schedule as summer. In winter that keeps the roots sodden while the plant is barely drinking, and ctenanthe setosa 'grey star' rots from the base.