Troubleshooting
Eyelash Begonia problems — and how to fix them
Eyelash Begonia (Begonia bowerae) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Powdery mildew
A common problem when airflow is poor and nights are cool; improve ventilation, avoid wetting foliage, and treat with a dilute potassium bicarbonate or neem solution at first sign.
Rhizome rot
Overwatering causes the surface rhizome to turn soft and mushy; allow the surface layer of soil to dry out between waterings and repot immediately if rot is detected, removing all affected tissue.
Prevent eyelash begonia problems before they start
Most eyelash begonia issues are care-mismatch, not bad luck. Dial in the basics:
Eyelash Begonia problems — FAQ
Why is my eyelash begonia powdery mildew?
A common problem when airflow is poor and nights are cool; improve ventilation, avoid wetting foliage, and treat with a dilute potassium bicarbonate or neem solution at first sign.
Why is my eyelash begonia rhizome rot?
Overwatering causes the surface rhizome to turn soft and mushy; allow the surface layer of soil to dry out between waterings and repot immediately if rot is detected, removing all affected tissue.