Troubleshooting
Grey Sage problems — and how to fix them
Grey Sage (Salvia canescens) 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 in wet or heavy soil
The primary cause of plant loss; the woolly foliage holds moisture against the crown in wet weather — ensure very sharp drainage, avoid mulching over the crown, and plant in a raised bed or rock garden if drainage is marginal.
Powdery mildew
Can affect plants in humid, sheltered positions; improve air circulation by removing congested growth and, if necessary, apply a sulphur-based fungicide at the first signs of infection.
Prevent grey sage problems before they start
Most grey sage issues are care-mismatch, not bad luck. Dial in the basics:
Grey Sage problems — FAQ
Why is my grey sage crown rot in wet or heavy soil?
The primary cause of plant loss; the woolly foliage holds moisture against the crown in wet weather — ensure very sharp drainage, avoid mulching over the crown, and plant in a raised bed or rock garden if drainage is marginal.
Why is my grey sage powdery mildew?
Can affect plants in humid, sheltered positions; improve air circulation by removing congested growth and, if necessary, apply a sulphur-based fungicide at the first signs of infection.