Troubleshooting
Anne Thomson Cranesbill problems — and how to fix them
Anne Thomson Cranesbill (Geranium 'Anne Thomson') 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.
Vine weevil
White grubs in the root zone cause sudden wilting; adult notching on leaf margins is the first sign — treat with Steinernema kraussei nematodes applied to moist soil in late summer.
Geranium sawfly
Greyish-green larvae with a series of black spots can reduce foliage to tatters in spring and late summer; inspect and remove by hand, or use an appropriate insecticide.
Prevent anne thomson cranesbill problems before they start
Most anne thomson cranesbill issues are care-mismatch, not bad luck. Dial in the basics:
Anne Thomson Cranesbill problems — FAQ
Why is my anne thomson cranesbill vine weevil?
White grubs in the root zone cause sudden wilting; adult notching on leaf margins is the first sign — treat with Steinernema kraussei nematodes applied to moist soil in late summer.
Why is my anne thomson cranesbill geranium sawfly?
Greyish-green larvae with a series of black spots can reduce foliage to tatters in spring and late summer; inspect and remove by hand, or use an appropriate insecticide.