Troubleshooting
Bluish Sage problems — and how to fix them
Bluish Sage (Salvia cyanescens) 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 winters
The greatest threat to this plant in UK and northern US gardens; plant on a raised bed or slope, add grit beneath the crown at planting, and protect with an open-sided cloche over winter in wet climates.
Slug and snail damage to new rosettes
Emerging spring growth is vulnerable to slug damage; apply wildlife-friendly iron phosphate pellets or use copper tape around containers. Gritty mulch around the plant crown acts as a deterrent.
Prevent bluish sage problems before they start
Most bluish sage issues are care-mismatch, not bad luck. Dial in the basics:
Bluish Sage problems — FAQ
Why is my bluish sage crown rot in wet winters?
The greatest threat to this plant in UK and northern US gardens; plant on a raised bed or slope, add grit beneath the crown at planting, and protect with an open-sided cloche over winter in wet climates.
Why is my bluish sage slug and snail damage to new rosettes?
Emerging spring growth is vulnerable to slug damage; apply wildlife-friendly iron phosphate pellets or use copper tape around containers. Gritty mulch around the plant crown acts as a deterrent.