How to Prune begonia 'White Cascade'?
No pruning required
begonia 'White Cascade' · Begonia 'White Cascade'
In spring plant tubers, hollow side uppermost, in free-draining compost at 16-18°C. Plant out after the last frosts in fertile, humus-rich, moist but well-drained soil in sun or partial shade. Lift the tubers in autumn before the first frosts and dry off. See begonias: outdoors for further information
No pruning required