Troubleshooting
Garden Cape Primrose problems — and how to fix them
Garden Cape Primrose (Streptocarpus gardenii) 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
Caused by overwatering or water pooling at the base of the rosette; stems and leaf bases turn brown and mushy. Remove affected tissue, dust with sulphur, and repot into fresh, drier mix.
Vine weevil larvae
Grubs eat roots, causing sudden wilting; check the compost if the plant collapses despite adequate watering. Treat with a nematode drench (Steinernema kraussei) in spring or autumn.
Prevent garden cape primrose problems before they start
Most garden cape primrose issues are care-mismatch, not bad luck. Dial in the basics:
Garden Cape Primrose problems — FAQ
Why is my garden cape primrose crown rot?
Caused by overwatering or water pooling at the base of the rosette; stems and leaf bases turn brown and mushy. Remove affected tissue, dust with sulphur, and repot into fresh, drier mix.
Why is my garden cape primrose vine weevil larvae?
Grubs eat roots, causing sudden wilting; check the compost if the plant collapses despite adequate watering. Treat with a nematode drench (Steinernema kraussei) in spring or autumn.