How to prune begonia grandis subsp. evansiana

Autumn after first frost for cut-back; deadhead during summer flowering season. After frost blackens stems, cut all top growth down to just above soil level with clean shears. Through summer, snip spent flower clusters just above the nearest leaf or node to encourage continuous blooming. No spring pruning is required as the plant regrows from tubers.

Annually in autumn; deadhead as needed in summer. Begonia grandis subsp. evansiana is a hardy, tuberous outdoor begonia that dies back to the ground each winter. Cut stems down to soil level in autumn after the first frost blackens the foliage, or let them die back naturally. In spring, no pruning is needed — new growth emerges from the tubers. Deadhead spent flowers to extend bloom.

After frost blackens stems, cut all top growth down to just above soil level with clean shears. Through summer, snip spent flower clusters just above the nearest leaf or node to encourage continuous blooming. No spring pruning is required as the plant regrows from tubers.