Troubleshooting
Sulphureum Epimedium problems — and how to fix them
Sulphureum Epimedium (Epimedium × versicolor 'Sulphureum') 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.
Tatty old foliage
Overwintered leaves look ragged by late winter. Shear off old foliage in late February before flower stems emerge to showcase the blooms.
Slow first-year establishment
New plants spread slowly until rooted. Keep watered the first season and mulch to speed establishment.
Vine weevil
Larvae can feed on roots in containers. Inspect roots and use biological nematode controls if grubs are present.
Poor flowering in deep dry shade
Very dark, root-bound sites reduce bloom. Improve soil with organic matter and choose a position with some indirect light.
Prevent sulphureum epimedium problems before they start
Most sulphureum epimedium issues are care-mismatch, not bad luck. Dial in the basics:
Looking for sulphureum epimedium in general rather than its problems? Read the full sulphureum epimedium care guide — light, water, soil and feeding.
Sulphureum Epimedium problems — FAQ
Why is my sulphureum epimedium tatty old foliage?
Overwintered leaves look ragged by late winter. Shear off old foliage in late February before flower stems emerge to showcase the blooms.
Why is my sulphureum epimedium slow first-year establishment?
New plants spread slowly until rooted. Keep watered the first season and mulch to speed establishment.
Why is my sulphureum epimedium vine weevil?
Larvae can feed on roots in containers. Inspect roots and use biological nematode controls if grubs are present.
Why is my sulphureum epimedium poor flowering in deep dry shade?
Very dark, root-bound sites reduce bloom. Improve soil with organic matter and choose a position with some indirect light.