How to prune rieger begonia

After each bloom flush; hard cut-back in late spring if needed. Pinch or clip faded flowers at the stem. After flowering slows, shorten all stems by approximately half, cutting above a leaf node. For rejuvenation, cut the whole plant back to 2–3 inches above the soil in a bright spot.

Deadhead continuously; cut back after main bloom flush or for rejuvenation. Rieger begonias are often treated as short-lived flowering plants, but they can be kept going with light pruning. Deadhead spent flowers regularly. After the main flush, cut stems back by half to encourage a second flush. If the plant becomes exhausted, cut hard to a few inches and allow it to regrow from the base.

Pinch or clip faded flowers at the stem. After flowering slows, shorten all stems by approximately half, cutting above a leaf node. For rejuvenation, cut the whole plant back to 2–3 inches above the soil in a bright spot.