Troubleshooting
Vandell's Rock Jasmine problems — and how to fix them
Vandell's Rock Jasmine (Androsace vandellii) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Crown rot from overhead moisture
The most common cause of failure; any water pooling in the cushion, especially at low temperatures, leads to irreversible Botrytis or Pythium rot — plant in vertical crevices or at an angle, and shelter from rain under glass.
Aphids under glass
Cushion species grown in alpine houses are susceptible to root and shoot aphids; inspect regularly and treat with a systemic insecticide appropriate for ornamental use, avoiding wetting the cushion.
Prevent vandell's rock jasmine problems before they start
Most vandell's rock jasmine issues are care-mismatch, not bad luck. Dial in the basics:
Vandell's Rock Jasmine problems — FAQ
Why is my vandell's rock jasmine crown rot from overhead moisture?
The most common cause of failure; any water pooling in the cushion, especially at low temperatures, leads to irreversible Botrytis or Pythium rot — plant in vertical crevices or at an angle, and shelter from rain under glass.
Why is my vandell's rock jasmine aphids under glass?
Cushion species grown in alpine houses are susceptible to root and shoot aphids; inspect regularly and treat with a systemic insecticide appropriate for ornamental use, avoiding wetting the cushion.