Also on these boards
prune roses just as or before new growth emerges from the canes (cut off the wood that died over the winter. this will promote strong, healthy shoots that will produce lots of blooms. it will also give plants a more open habit (?) which helps them resist diseases like black spot
PREV 3/18 Summer-Blooming Trees and Shrubs Plants that bloom in summer, such as potentilla, butterfly bush, and crape myrtle, produce their flowers on new growth from the current season. Prune them in winter while they're dormant, or in early spring just before they push out their new growth. You can even cut them all the way to the ground in late winter, and they'll still bloom that same summer.