Spring is the best time to prune butterfly bushes. Pruning in the late fall or winter leaves them susceptible to frost damage. Wait until the spring to do a hard prune (pruning it back to one foot ...
The how to prune is based on what type of plant it is. Does it have one main trunk or multiple stems or trunks (cane producing)? Cane-producing plants like abelia, nandina and butterfly bush should ...