Troubleshooting
Sander's Vanda problems — and how to fix them
Sander's Vanda (Vanda sanderiana) 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.
Failure to flower
Light deficiency is the leading cause. This species needs very bright light with direct sun; insufficient light produces leaves but no large blooms.
Cold sensitivity
A warm-grower from lowland Mindanao, it sulks and drops leaves below roughly 16°C. Keep it warm year-round and avoid chilly draughts.
Root and crown rot
Wet, airless conditions rot the thick roots and crown. Grow bare-root, water early in the day, and maintain strong air movement.
Dehydrated, shrivelled roots
Under-watering or low humidity, common in centrally heated rooms. Increase soaking frequency and humidity so the velamen stays plump.
Prevent sander's vanda problems before they start
Most sander's vanda issues are care-mismatch, not bad luck. Dial in the basics:
Looking for sander's vanda in general rather than its problems? Read the full sander's vanda care guide — light, water, soil and feeding.
Sander's Vanda problems — FAQ
Why is my sander's vanda failure to flower?
Light deficiency is the leading cause. This species needs very bright light with direct sun; insufficient light produces leaves but no large blooms.
Why is my sander's vanda cold sensitivity?
A warm-grower from lowland Mindanao, it sulks and drops leaves below roughly 16°C. Keep it warm year-round and avoid chilly draughts.
Why is my sander's vanda root and crown rot?
Wet, airless conditions rot the thick roots and crown. Grow bare-root, water early in the day, and maintain strong air movement.
Why is my sander's vanda dehydrated, shrivelled roots?
Under-watering or low humidity, common in centrally heated rooms. Increase soaking frequency and humidity so the velamen stays plump.