Troubleshooting
Aizoon Rosularia problems — and how to fix them
Aizoon Rosularia (Rosularia aizoon) 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 winter
Wet, cold conditions cause the rosette centre to blacken and collapse. Keep virtually dry from October to February and improve drainage. Remove rotted portions with a clean blade and dust with sulphur powder.
Aphids on flower stems
Sap-sucking aphids cluster on emerging flower stems in spring. Blast off with water, or apply insecticidal soap; avoid systemic pesticides if growing near pollinators.
Sunscorch on very young offsets
Newly detached offsets lack the protective wax of mature rosettes and can scorch in intense midday sun. Introduce gradually to full sun over 1–2 weeks after potting.
Prevent aizoon rosularia problems before they start
Most aizoon rosularia issues are care-mismatch, not bad luck. Dial in the basics:
Aizoon Rosularia problems — FAQ
Why is my aizoon rosularia crown rot in winter?
Wet, cold conditions cause the rosette centre to blacken and collapse. Keep virtually dry from October to February and improve drainage. Remove rotted portions with a clean blade and dust with sulphur powder.
Why is my aizoon rosularia aphids on flower stems?
Sap-sucking aphids cluster on emerging flower stems in spring. Blast off with water, or apply insecticidal soap; avoid systemic pesticides if growing near pollinators.
Why is my aizoon rosularia sunscorch on very young offsets?
Newly detached offsets lack the protective wax of mature rosettes and can scorch in intense midday sun. Introduce gradually to full sun over 1–2 weeks after potting.