Troubleshooting
Lavender-leaved Sage problems — and how to fix them
Lavender-leaved Sage (Salvia lavandulacea) 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.
Frost damage
Frost-tender; even light frost can blacken stems and kill the plant. In the UK (zone H3), bring into a frost-free greenhouse or conservatory from October to April.
Botrytis (grey mould)
Fine stems and dense growth can trap moisture, encouraging botrytis in cool, damp conditions. Remove dead material promptly and ensure good air circulation.
Prevent lavender-leaved sage problems before they start
Most lavender-leaved sage issues are care-mismatch, not bad luck. Dial in the basics:
Lavender-leaved Sage problems — FAQ
Why is my lavender-leaved sage frost damage?
Frost-tender; even light frost can blacken stems and kill the plant. In the UK (zone H3), bring into a frost-free greenhouse or conservatory from October to April.
Why is my lavender-leaved sage botrytis (grey mould)?
Fine stems and dense growth can trap moisture, encouraging botrytis in cool, damp conditions. Remove dead material promptly and ensure good air circulation.