Find out when to prune a butterfly bush and how to make the right cuts to enjoy more flowers on this fast-growing shrub.

"Trim lightly to maintain shape but avoid cutting into old wood," Holly added. Buddleia (Butterfly Bush) Buddleia needs to be pruned hard in spring or late winter to encourage flowers later on.

One of the fastest-growing flowering shrubs, a butterfly bush can easily put on 5 feet or more of new growth in a single season. Learning how and when to prune a butterfly bush can help you keep ...