Troubleshooting
Lydian Stonecrop problems — and how to fix them
Lydian Stonecrop (Sedum lydium) 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 and crown rot
The primary threat; caused by overwatering or poorly drained soil — stems become mushy at the base. Remove affected material, allow the remaining plant to dry, and replant in fresh gritty compost.
Slugs and snails
Particularly damaging to young rosettes and soft spring growth outdoors; use grit mulch around the crown and wildlife-safe slug pellets if damage is severe.
Vine weevil larvae
Grubs eat roots, causing sudden plant collapse, especially in container-grown specimens; treat with nematodes in late summer when soil is warm.
Prevent lydian stonecrop problems before they start
Most lydian stonecrop issues are care-mismatch, not bad luck. Dial in the basics:
Lydian Stonecrop problems — FAQ
Why is my lydian stonecrop root and crown rot?
The primary threat; caused by overwatering or poorly drained soil — stems become mushy at the base. Remove affected material, allow the remaining plant to dry, and replant in fresh gritty compost.
Why is my lydian stonecrop slugs and snails?
Particularly damaging to young rosettes and soft spring growth outdoors; use grit mulch around the crown and wildlife-safe slug pellets if damage is severe.
Why is my lydian stonecrop vine weevil larvae?
Grubs eat roots, causing sudden plant collapse, especially in container-grown specimens; treat with nematodes in late summer when soil is warm.