How to prune begonia grandis

Cut back dead stems in late autumn or early spring after frost kills top growth. In late autumn or early spring, cut all dead stems to just above ground level with clean secateurs. Optional: pinch growing tips once in early summer to promote branching, but the plant flowers well without it.

Once per year (annual cut-back of dead top growth); optional tip-pinch once in early summer. Begonia grandis is a hardy perennial begonia that dies back to the ground each winter naturally — no pruning required. Simply cut down brown, frost-killed stems in late autumn or early spring. Pinching tips in early summer can encourage a slightly bushier plant, but it is not essential for good flowering.

In late autumn or early spring, cut all dead stems to just above ground level with clean secateurs. Optional: pinch growing tips once in early summer to promote branching, but the plant flowers well without it.