Troubleshooting
Begonia 'Silver Limbo' problems — and how to fix them
Begonia 'Silver Limbo' (Begonia rex-cultorum 'Silver Limbo') 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.
Browning leaf edges
Low humidity or fertiliser salts. Raise humidity to around 50-60% and feed lightly, flushing the soil occasionally.
Rhizome rot
Overwatering or a buried rhizome rots the crown. Keep the rhizome at the surface, use airy mix, and let the surface dry between waterings.
Powdery mildew
Humid, stagnant air encourages mildew on rex begonias. Improve airflow and keep foliage dry.
Dull, flat colour
Insufficient light mutes the silver. Move to brighter indirect light to restore the metallic sheen.
Prevent begonia 'silver limbo' problems before they start
Most begonia 'silver limbo' issues are care-mismatch, not bad luck. Dial in the basics:
- Common rex begonia problems — the species this cultivar belongs to
- Common begonia 'silver limbo' problems — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- Begonia 'Silver Limbo' watering schedule
- Begonia 'Silver Limbo' light requirements
- Best soil mix for begonia 'silver limbo'
- Begonia 'Silver Limbo' temperature & humidity
- Full begonia 'silver limbo' care guide
Looking for the species overview? Begonia — the full care guide.
Begonia 'Silver Limbo' problems — FAQ
Why is my begonia 'silver limbo' browning leaf edges?
Low humidity or fertiliser salts. Raise humidity to around 50-60% and feed lightly, flushing the soil occasionally.
Why is my begonia 'silver limbo' rhizome rot?
Overwatering or a buried rhizome rots the crown. Keep the rhizome at the surface, use airy mix, and let the surface dry between waterings.
Why is my begonia 'silver limbo' powdery mildew?
Humid, stagnant air encourages mildew on rex begonias. Improve airflow and keep foliage dry.
Why is my begonia 'silver limbo' dull, flat colour?
Insufficient light mutes the silver. Move to brighter indirect light to restore the metallic sheen.