Troubleshooting
Rayed Prosthechea problems — and how to fix them
Rayed Prosthechea (Prosthechea radiata) 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.
Root rot
Keeping the bark too moist, particularly in cool weather, causes rapid root deterioration.
Botrytis on flowers
High humidity combined with poor airflow promotes grey mould on the delicate white petals.
Mealybugs
Mealybugs colonise inside pseudobulb sheaths and at the base of leaves, causing slow decline.
Weak fragrance
Insufficient light reduces the fragrance intensity of the flowers, which is dependent on photosynthetic vigour.
Overcrowded pseudobulbs
Without regular repotting, the rhizome climbs out of the pot and new growths have insufficient room and nutrition.
Prevent rayed prosthechea problems before they start
Most rayed prosthechea issues are care-mismatch, not bad luck. Dial in the basics:
Rayed Prosthechea problems — FAQ
Why is my rayed prosthechea root rot?
Keeping the bark too moist, particularly in cool weather, causes rapid root deterioration.
Why is my rayed prosthechea botrytis on flowers?
High humidity combined with poor airflow promotes grey mould on the delicate white petals.
Why is my rayed prosthechea mealybugs?
Mealybugs colonise inside pseudobulb sheaths and at the base of leaves, causing slow decline.
Why is my rayed prosthechea weak fragrance?
Insufficient light reduces the fragrance intensity of the flowers, which is dependent on photosynthetic vigour.
Why is my rayed prosthechea overcrowded pseudobulbs?
Without regular repotting, the rhizome climbs out of the pot and new growths have insufficient room and nutrition.