Troubleshooting
Begonia peltata problems — and how to fix them
Begonia peltata (Begonia peltata) 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.
Stem rot
Soft, collapsing fleshy stems from overwatering or poor drainage; let soil dry partway and use a gritty, sandy mix.
Matted, rotting felt
Wet foliage causes the leaf hairs to mat and decay; water only at the soil line and never mist this species.
Faded, lax growth
Pale, floppy stems and reduced silvering from too little light; give bright indirect light or gentle morning sun.
Powdery mildew
White fungal bloom in damp, stagnant air; improve ventilation and keep leaves dry.
Prevent begonia peltata problems before they start
Most begonia peltata issues are care-mismatch, not bad luck. Dial in the basics:
Looking for the species overview? Begonia — the full care guide.
Begonia peltata problems — FAQ
Why is my begonia peltata stem rot?
Soft, collapsing fleshy stems from overwatering or poor drainage; let soil dry partway and use a gritty, sandy mix.
Why is my begonia peltata matted, rotting felt?
Wet foliage causes the leaf hairs to mat and decay; water only at the soil line and never mist this species.
Why is my begonia peltata faded, lax growth?
Pale, floppy stems and reduced silvering from too little light; give bright indirect light or gentle morning sun.
Why is my begonia peltata powdery mildew?
White fungal bloom in damp, stagnant air; improve ventilation and keep leaves dry.