Troubleshooting
Sutherland's Ice Plant problems — and how to fix them
Sutherland's Ice Plant (Delosperma sutherlandii) 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 in wet winters
Cold, wet soil in winter is the most common cause of plant death. Ensure excellent drainage, and in very wet climates consider a gravel mulch or moving containers under cover.
Aphids on new growth
Soft spring growth may attract aphids. Remove by hand or apply insecticidal soap spray in the early morning away from strong direct sun.
Etiolation in low light
Prolonged low-light conditions cause stretched, pale growth and poor flowering. Relocate to the sunniest available spot.
Failure to rebloom
Can result from insufficient sun, no winter rest, or excess nitrogen. Ensure a dry, cool winter rest period to trigger spring bud formation.
Frost heave of container roots
Outdoor containers may heave in hard frosts. In USDA zone 5 or below, overwinter containers in an unheated greenhouse or cold frame.
Prevent sutherland's ice plant problems before they start
Most sutherland's ice plant issues are care-mismatch, not bad luck. Dial in the basics:
Sutherland's Ice Plant problems — FAQ
Why is my sutherland's ice plant root rot in wet winters?
Cold, wet soil in winter is the most common cause of plant death. Ensure excellent drainage, and in very wet climates consider a gravel mulch or moving containers under cover.
Why is my sutherland's ice plant aphids on new growth?
Soft spring growth may attract aphids. Remove by hand or apply insecticidal soap spray in the early morning away from strong direct sun.
Why is my sutherland's ice plant etiolation in low light?
Prolonged low-light conditions cause stretched, pale growth and poor flowering. Relocate to the sunniest available spot.
Why is my sutherland's ice plant failure to rebloom?
Can result from insufficient sun, no winter rest, or excess nitrogen. Ensure a dry, cool winter rest period to trigger spring bud formation.
Why is my sutherland's ice plant frost heave of container roots?
Outdoor containers may heave in hard frosts. In USDA zone 5 or below, overwinter containers in an unheated greenhouse or cold frame.