Troubleshooting
Italian Sage Phlomis problems — and how to fix them
Italian Sage Phlomis (Phlomis italica) 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 and crown rot
The most common cause of plant death; caused by waterlogged or poorly drained soil, especially over winter. Improve drainage by adding grit to the planting site and avoid irrigation from autumn onward.
Powdery mildew
The dense felted foliage can harbour powdery mildew in humid or shaded conditions; improve air circulation and site in full sun to minimise risk.
Prevent italian sage phlomis problems before they start
Most italian sage phlomis issues are care-mismatch, not bad luck. Dial in the basics:
Italian Sage Phlomis problems — FAQ
Why is my italian sage phlomis root and crown rot?
The most common cause of plant death; caused by waterlogged or poorly drained soil, especially over winter. Improve drainage by adding grit to the planting site and avoid irrigation from autumn onward.
Why is my italian sage phlomis powdery mildew?
The dense felted foliage can harbour powdery mildew in humid or shaded conditions; improve air circulation and site in full sun to minimise risk.