Troubleshooting
Tuberous Begonia 'Nonstop' problems — and how to fix them
Tuberous Begonia 'Nonstop' (Begonia x tuberhybrida 'Nonstop') 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.
Botrytis (grey mould)
Fuzzy grey rot on dense blooms in cool damp air; remove faded flowers promptly and improve airflow.
Powdery mildew
White coating on leaves in humid, crowded conditions; space plants, ventilate, and avoid wetting foliage.
Tuber rot
Soft, blackening tuber from overwatering or burying it too deep; plant shallow in free-draining mix and keep storage tubers dry and frost-free.
Bud drop
Buds fall after heat stress, dryness, or sudden changes; keep moisture and temperature steady.
Prevent tuberous begonia 'nonstop' problems before they start
Most tuberous begonia 'nonstop' issues are care-mismatch, not bad luck. Dial in the basics:
Looking for tuberous begonia 'nonstop' in general rather than its problems? Read the full tuberous begonia 'nonstop' care guide — light, water, soil and feeding.
Tuberous Begonia 'Nonstop' problems — FAQ
Why is my tuberous begonia 'nonstop' botrytis (grey mould)?
Fuzzy grey rot on dense blooms in cool damp air; remove faded flowers promptly and improve airflow.
Why is my tuberous begonia 'nonstop' powdery mildew?
White coating on leaves in humid, crowded conditions; space plants, ventilate, and avoid wetting foliage.
Why is my tuberous begonia 'nonstop' tuber rot?
Soft, blackening tuber from overwatering or burying it too deep; plant shallow in free-draining mix and keep storage tubers dry and frost-free.
Why is my tuberous begonia 'nonstop' bud drop?
Buds fall after heat stress, dryness, or sudden changes; keep moisture and temperature steady.