Troubleshooting
Compact Ice Plant problems — and how to fix them
Compact Ice Plant (Delosperma congestum) 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.
Crown rot in wet winters
Despite its cold hardiness, the crown can rot in waterlogged soil during winter. Ensure excellent drainage, especially in clay-heavy gardens.
Sparse flowering in shade
Reduced flowering is the main symptom of too little sun. Relocate or remove shading plants.
Bare patches in mat
Older sections of the mat die in the centre over time; fill gaps with cuttings or divisions from vigorous outer growth.
Mealybugs and aphids
Both can attack in warm spells. Treat mealybugs with neem oil; knock aphids off with a strong water jet or treat with insecticidal soap.
Frost heave
In very cold zones, repeated freeze-thaw can loosen plants in lighter soils. Firm them back in after thaw periods.
Prevent compact ice plant problems before they start
Most compact ice plant issues are care-mismatch, not bad luck. Dial in the basics:
Compact Ice Plant problems — FAQ
Why is my compact ice plant crown rot in wet winters?
Despite its cold hardiness, the crown can rot in waterlogged soil during winter. Ensure excellent drainage, especially in clay-heavy gardens.
Why is my compact ice plant sparse flowering in shade?
Reduced flowering is the main symptom of too little sun. Relocate or remove shading plants.
Why is my compact ice plant bare patches in mat?
Older sections of the mat die in the centre over time; fill gaps with cuttings or divisions from vigorous outer growth.
Why is my compact ice plant mealybugs and aphids?
Both can attack in warm spells. Treat mealybugs with neem oil; knock aphids off with a strong water jet or treat with insecticidal soap.
Why is my compact ice plant frost heave?
In very cold zones, repeated freeze-thaw can loosen plants in lighter soils. Firm them back in after thaw periods.