Evergreen Shrubs. Prune evergreen shrubs, such as juniper and yew, in late March or early April before new growth begins. Light pruning may also be done in mid-summer.
Avoid pruning evergreen shrubs in the fall. Fall pruned evergreens are more susceptible to winter injury. Deciduous Trees. February through March is generally regarded as the best time to prune.
Spring flowering shrubs such as lilac and forsythia bloom on the previous season's growth and should be pruned within two weeks after flowering. Pruning at any other time will reduce or eliminate the flower display. Most conifers require minimal pruning that will also vary with species. A lot of homeowners request pruning services in the fall as part of an overall effort to clean up their landscape before the winter and this can certainly be performed on many shrubs.
Pruning bushes around the home can help them look shapely and nice before visitors come for Thanksgiving or those holiday lights go on. Sep 02, When to Prune Evergreen Shrubs. In general, prune needle-bearing evergreen shrubs in early spring, toward the end of dormancy and before the emergence of new growth. Pruning the evergreens at this time allows plenty of time for new growth to emerge, as well as plenty of time for these new shoots to harden off before the following winter.
Spring-flowering shrubs, such as lilac and forsythia, develop buds in late summer and early fall that will display the following year. If you prune during fall or winter, you will cut off these. Winter is a busy pruning season. According to “Sunset” it is an ideal time to trim woody shrubs to keep them from becoming leggy during the growing season.