Prune Knockout roses heavily in late winter or early spring as new growth begins. Lightly deadhead and shape in late summer, stopping two months before frost. For annual pruning, cut back one-third of ...

Prune hostas just before a killing frost in your zone for best results. Fall pruning keeps beds tidy, deters pests, and directs energy to spring growth. If missed, let foliage die back naturally and ...

Cutting back hostas too soon in fall can limit root growth needed to survive winter. Removing hosta leaves before winter helps reduce pests and diseases in spring. After a hard freeze kills the ...

Timing is everything—and it may be better to wait. Cutting back coneflowers helps them stay healthy by clearing old stems and improving air flow for new growth. It’s usually best to wait until spring ...