Troubleshooting
Matted Globularia problems — and how to fix them
Matted Globularia (Globularia cordifolia) 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 from winter wet
The most frequent cause of plant loss; heavy rainfall or clay soils that hold moisture around the crown through winter cause fatal rotting. Grow in raised beds, troughs, or on a slope, and consider covering with an open cloche in wet winters.
Vine weevil larvae
White C-shaped grubs feed on roots, causing sudden wilting and collapse of apparently healthy mats. Check root zone in autumn; treat container specimens with a nematode biological control (Steinernema kraussei) in early autumn when soil is still warm.
Prevent matted globularia problems before they start
Most matted globularia issues are care-mismatch, not bad luck. Dial in the basics:
Matted Globularia problems — FAQ
Why is my matted globularia crown rot from winter wet?
The most frequent cause of plant loss; heavy rainfall or clay soils that hold moisture around the crown through winter cause fatal rotting. Grow in raised beds, troughs, or on a slope, and consider covering with an open cloche in wet winters.
Why is my matted globularia vine weevil larvae?
White C-shaped grubs feed on roots, causing sudden wilting and collapse of apparently healthy mats. Check root zone in autumn; treat container specimens with a nematode biological control (Steinernema kraussei) in early autumn when soil is still warm.