Troubleshooting
Common African Violet problems — and how to fix them
Common African Violet (Saintpaulia ionantha) 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.
White ring marks on leaves
Permanent damage caused by cold water or cold draughts touching the leaves. Always use room-temperature water and avoid cold window draughts, especially in winter.
Powdery mildew
White dusting on leaves; encouraged by poor air circulation. Improve ventilation and apply a dilute potassium bicarbonate spray. Remove severely affected leaves.
Crown rot
Overwatering or water pooling in the crown causes rapid collapse. Remove dead tissue, allow to dry slightly, and repot into fresh mix. Water only from below going forward.
Failure to rebloom
Caused by insufficient light, wrong pot size, or lack of fertiliser. Move to a brighter position, repot if root-bound beyond snug, and resume regular feeding.
Mealybugs
Cottony clusters in the crown and leaf axils. Treat with isopropyl alcohol on a cotton bud; repeat weekly. Severe infestations may require neem oil drench of the soil.
Prevent common african violet problems before they start
Most common african violet issues are care-mismatch, not bad luck. Dial in the basics:
Common African Violet problems — FAQ
Why is my common african violet white ring marks on leaves?
Permanent damage caused by cold water or cold draughts touching the leaves. Always use room-temperature water and avoid cold window draughts, especially in winter.
Why is my common african violet powdery mildew?
White dusting on leaves; encouraged by poor air circulation. Improve ventilation and apply a dilute potassium bicarbonate spray. Remove severely affected leaves.
Why is my common african violet crown rot?
Overwatering or water pooling in the crown causes rapid collapse. Remove dead tissue, allow to dry slightly, and repot into fresh mix. Water only from below going forward.
Why is my common african violet failure to rebloom?
Caused by insufficient light, wrong pot size, or lack of fertiliser. Move to a brighter position, repot if root-bound beyond snug, and resume regular feeding.
Why is my common african violet mealybugs?
Cottony clusters in the crown and leaf axils. Treat with isopropyl alcohol on a cotton bud; repeat weekly. Severe infestations may require neem oil drench of the soil.