Troubleshooting
Crested Vanda problems — and how to fix them
Crested Vanda (Vanda cristata) 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 desiccation
Aerial roots shrivel and grey if watering frequency is insufficient for the bare-root growing style.
Root rot
Any dense or moisture-retentive medium causes the thick aerial roots to rot at the base; always use open baskets.
Leaf loss at base
Lower leaves naturally yellow and drop as the stem elongates; faster-than-normal leaf loss indicates cultural stress.
Scale insects
Armoured scales settle on the strap leaves and stems; inspect new acquisitions carefully to prevent introduction.
Failure to flower
Insufficient light, especially during the short winter days, is the primary barrier to annual reflowering.
Prevent crested vanda problems before they start
Most crested vanda issues are care-mismatch, not bad luck. Dial in the basics:
Crested Vanda problems — FAQ
Why is my crested vanda root desiccation?
Aerial roots shrivel and grey if watering frequency is insufficient for the bare-root growing style.
Why is my crested vanda root rot?
Any dense or moisture-retentive medium causes the thick aerial roots to rot at the base; always use open baskets.
Why is my crested vanda leaf loss at base?
Lower leaves naturally yellow and drop as the stem elongates; faster-than-normal leaf loss indicates cultural stress.
Why is my crested vanda scale insects?
Armoured scales settle on the strap leaves and stems; inspect new acquisitions carefully to prevent introduction.
Why is my crested vanda failure to flower?
Insufficient light, especially during the short winter days, is the primary barrier to annual reflowering.