Troubleshooting
Scharff's Begonia problems — and how to fix them
Scharff's Begonia (Begonia scharffiana) 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.
Mealybugs
The dense leaf hairs provide shelter for mealybug colonies; check the undersides of leaves and stem joints regularly and treat early infestations with a cotton bud dipped in isopropyl alcohol, followed by insecticidal soap spray.
Leggy, sparse growth
Insufficient light is the primary cause; move closer to a bright window and prune long stems back by one-third in spring to encourage branching and a more compact habit.
Prevent scharff's begonia problems before they start
Most scharff's begonia issues are care-mismatch, not bad luck. Dial in the basics:
Scharff's Begonia problems — FAQ
Why is my scharff's begonia mealybugs?
The dense leaf hairs provide shelter for mealybug colonies; check the undersides of leaves and stem joints regularly and treat early infestations with a cotton bud dipped in isopropyl alcohol, followed by insecticidal soap spray.
Why is my scharff's begonia leggy, sparse growth?
Insufficient light is the primary cause; move closer to a bright window and prune long stems back by one-third in spring to encourage branching and a more compact habit.