Troubleshooting
Begonia 'Zip Code' problems — and how to fix them
Begonia 'Zip Code' (Begonia 'Zip Code') 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.
Powdery mildew
White powdery patches appear in stagnant, humid air. Improve airflow, avoid wetting leaves, and remove affected foliage promptly.
Crown and rhizome rot
Overwatering or water sitting on the rhizome causes mushy collapse. Let the surface dry between waterings and keep the crown dry.
Leaf scorch and fading
Direct sun bleaches and crisps the textured leaves. Move to bright but filtered light to restore colour and pattern.
Botrytis (grey mould)
Fuzzy grey rot on damp leaves and spent flowers in cool, still air. Remove debris, ventilate, and keep foliage dry.
Prevent begonia 'zip code' problems before they start
Most begonia 'zip code' issues are care-mismatch, not bad luck. Dial in the basics:
Looking for the species overview? Begonia 'Zip' — the full care guide.
Begonia 'Zip Code' problems — FAQ
Why is my begonia 'zip code' powdery mildew?
White powdery patches appear in stagnant, humid air. Improve airflow, avoid wetting leaves, and remove affected foliage promptly.
Why is my begonia 'zip code' crown and rhizome rot?
Overwatering or water sitting on the rhizome causes mushy collapse. Let the surface dry between waterings and keep the crown dry.
Why is my begonia 'zip code' leaf scorch and fading?
Direct sun bleaches and crisps the textured leaves. Move to bright but filtered light to restore colour and pattern.
Why is my begonia 'zip code' botrytis (grey mould)?
Fuzzy grey rot on damp leaves and spent flowers in cool, still air. Remove debris, ventilate, and keep foliage dry.