Troubleshooting
Ctenanthe Setosa 'Grey Star' problems — and how to fix them
Ctenanthe Setosa 'Grey Star' (Ctenanthe setosa 'Grey Star') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Brown, crispy leaf edges
Almost always low humidity, dry air or mineral build-up from tap water. Raise humidity and switch to filtered or rainwater.
Curling or folding leaves
Under-watering or very low humidity; the plant curls to conserve moisture. Check the rootball is evenly moist and increase ambient humidity.
Faded, washed-out silver markings
Too much direct sun bleaches the variegation. Move to bright indirect light away from harsh midday rays.
Spider mites
Dry indoor air invites mites, shown by fine webbing and stippled leaves. Rinse foliage, raise humidity and treat with insecticidal soap.
Prevent ctenanthe setosa 'grey star' problems before they start
Most ctenanthe setosa 'grey star' issues are care-mismatch, not bad luck. Dial in the basics:
- Common calathea setosa problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Ctenanthe Setosa 'Grey Star' watering schedule
- Ctenanthe Setosa 'Grey Star' light requirements
- Best soil mix for ctenanthe setosa 'grey star'
- Ctenanthe Setosa 'Grey Star' temperature & humidity
- Full ctenanthe setosa 'grey star' care guide
Looking for ctenanthe setosa 'grey star' in general rather than its problems? Read the full ctenanthe setosa 'grey star' care guide — light, water, soil and feeding.
Ctenanthe Setosa 'Grey Star' problems — FAQ
Why is my ctenanthe setosa 'grey star' brown, crispy leaf edges?
Almost always low humidity, dry air or mineral build-up from tap water. Raise humidity and switch to filtered or rainwater.
Why is my ctenanthe setosa 'grey star' curling or folding leaves?
Under-watering or very low humidity; the plant curls to conserve moisture. Check the rootball is evenly moist and increase ambient humidity.
Why is my ctenanthe setosa 'grey star' faded, washed-out silver markings?
Too much direct sun bleaches the variegation. Move to bright indirect light away from harsh midday rays.
Why is my ctenanthe setosa 'grey star' spider mites?
Dry indoor air invites mites, shown by fine webbing and stippled leaves. Rinse foliage, raise humidity and treat with insecticidal soap.