When to prune angel wing begonia 'lucerna' in the UK

Prune angel wing begonia 'lucerna' in early to mid spring. For shrubs that flower on the current season's growth, the RHS times pruning to early or mid spring — after severe weather has passed and once the growth buds begin to swell. In Britain that is usually March into April rather than the February common in warmer regions; prune too early and the new shoots meet a late frost.

There is no nesting-bird restriction that realistically applies to angel wing begonia 'lucerna', since birds do not nest in it. The Wildlife and Countryside Act 1981 still protects any active nest you do find anywhere in the garden — the rule is about the nest, not the plant.

Cut back the tallest canes by up to one-third using clean, sharp scissors, cutting just above a leaf node. Pinch growing tips regularly during the growing season to promote branching. Remove dead flower clusters at the stem.

Annually for shaping; pinching every few weeks in spring–summer. Angel Wing Begonia 'Lucerna' is a cane-stemmed begonia that benefits from pruning to control its tall, sometimes lanky growth. Pinch or cut stem tips after flowering to encourage branching and bushiness. Cut overly long canes back by one-third in early spring. Remove spent flower clusters and dead stems as they appear.

Most pruning guides online are written for US conditions and anchored to USDA zones. Britain's maritime climate gives milder winters but later, less predictable last frosts — from March in the south-west to mid-May in the north — so the RHS advises against winter pruning for most plants: it pushes out soft growth that a late frost then kills. Britain also has the nesting-bird law, which has no US equivalent.