Troubleshooting
Houseleek Rosularia problems — and how to fix them
Houseleek Rosularia (Rosularia sempervivum) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot
Caused by overwatering or poorly drained compost. Rosettes collapse and turn mushy at the base. Remove affected plants, let remaining roots dry, and replant in fresh gritty mix.
Vine weevil grubs
Larvae feed on roots, causing plants to wilt and collapse suddenly. Check roots when repotting; treat with biological nematode control (Steinernema kraussei) in spring or autumn.
Fungal leaf spotting in high humidity
Dark or water-soaked spots on lower leaves in humid, stagnant air. Improve ventilation, remove affected leaves, and avoid overhead watering.
Prevent houseleek rosularia problems before they start
Most houseleek rosularia issues are care-mismatch, not bad luck. Dial in the basics:
Houseleek Rosularia problems — FAQ
Why is my houseleek rosularia root rot?
Caused by overwatering or poorly drained compost. Rosettes collapse and turn mushy at the base. Remove affected plants, let remaining roots dry, and replant in fresh gritty mix.
Why is my houseleek rosularia vine weevil grubs?
Larvae feed on roots, causing plants to wilt and collapse suddenly. Check roots when repotting; treat with biological nematode control (Steinernema kraussei) in spring or autumn.
Why is my houseleek rosularia fungal leaf spotting in high humidity?
Dark or water-soaked spots on lower leaves in humid, stagnant air. Improve ventilation, remove affected leaves, and avoid overhead watering.