Troubleshooting
Greek Tree Sage problems — and how to fix them
Greek Tree Sage (Salvia tomentosa) 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.
Root rot in wet winters
The greatest threat to this plant in UK conditions is persistent winter wet; plant on a slope or raised bed, add deep gravel drainage at the base of the planting hole, and avoid mulching close to the woody stems.
Rosemary beetle (Chrysolina americana)
Both adult beetles and larvae graze the aromatic foliage of Mediterranean sages; inspect plants in late summer and autumn and remove by hand, or shake over a tray and dispose.
Prevent greek tree sage problems before they start
Most greek tree sage issues are care-mismatch, not bad luck. Dial in the basics:
Greek Tree Sage problems — FAQ
Why is my greek tree sage root rot in wet winters?
The greatest threat to this plant in UK conditions is persistent winter wet; plant on a slope or raised bed, add deep gravel drainage at the base of the planting hole, and avoid mulching close to the woody stems.
Why is my greek tree sage rosemary beetle (chrysolina americana)?
Both adult beetles and larvae graze the aromatic foliage of Mediterranean sages; inspect plants in late summer and autumn and remove by hand, or shake over a tray and dispose.