Troubleshooting
Bow Bells Cattleya problems — and how to fix them
Bow Bells Cattleya (Cattleya 'Bow Bells') 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.
Botrytis spotting on white flowers
Grey or tan speckles on the petals and lip of white-flowered cattleyas are caused by Botrytis cinerea (grey mould) in cool, humid, still air conditions. Improve air circulation with a fan, lower humidity slightly while in flower, and remove any affected blooms promptly.
Yellowing lower leaves
Progressive yellowing of the oldest (lowest) leaves is natural as the plant redirects energy to newer pseudobulbs. However, widespread yellowing of multiple pseudobulbs at once signals root rot, over-fertilisation, or root disease. Inspect the root system and repot if roots are black and mushy.
Mealybugs in leaf axils
White fluffy deposits at the junctions between leaves and pseudobulbs are mealybugs. Treat with isopropyl alcohol on a cotton swab for visible colonies, then follow up with systemic neem oil or insecticidal soap spray every 7–10 days for 4 weeks. Isolate from other plants.
Prevent bow bells cattleya problems before they start
Most bow bells cattleya issues are care-mismatch, not bad luck. Dial in the basics:
- Common cattleya orchid problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Bow Bells Cattleya watering schedule
- Bow Bells Cattleya light requirements
- Best soil mix for bow bells cattleya
- Bow Bells Cattleya temperature & humidity
- Full bow bells cattleya care guide
Looking for bow bells cattleya in general rather than its problems? Read the full bow bells cattleya care guide — light, water, soil and feeding.
Bow Bells Cattleya problems — FAQ
Why is my bow bells cattleya botrytis spotting on white flowers?
Grey or tan speckles on the petals and lip of white-flowered cattleyas are caused by Botrytis cinerea (grey mould) in cool, humid, still air conditions. Improve air circulation with a fan, lower humidity slightly while in flower, and remove any affected blooms promptly.
Why is my bow bells cattleya yellowing lower leaves?
Progressive yellowing of the oldest (lowest) leaves is natural as the plant redirects energy to newer pseudobulbs. However, widespread yellowing of multiple pseudobulbs at once signals root rot, over-fertilisation, or root disease. Inspect the root system and repot if roots are black and mushy.
Why is my bow bells cattleya mealybugs in leaf axils?
White fluffy deposits at the junctions between leaves and pseudobulbs are mealybugs. Treat with isopropyl alcohol on a cotton swab for visible colonies, then follow up with systemic neem oil or insecticidal soap spray every 7–10 days for 4 weeks. Isolate from other plants.