Best Time and Method for Trimming Shrubs and Evergreens

When to Prune for Healthy Growth

Timing and technique are critical when trimming shrubs and evergreens. In the Detroit area, improper pruning with hedge trimmers causes browning of cut leaf tissue.

Guidelines by Plant Type

• Non-flowering Evergreens and Shrubs: Can be hand-pruned any time of year.
• Flowering Shrubs: Prune only immediately after flowering to avoid removing next year's buds.

Why Hand Pruning Beats Hedge Trimmers

Hedge trimmers shred leaves, leaving damaged tissue that browns and invites disease. Hand pruners allow selective cuts, preserving plant health and natural shape. For best results, prune with clean, sharp tools and avoid removing more than one-third of growth at once.