While evergreens such as blue spruce don't require extensive pruning -- the plant doesn't grow continuously and doesn't require much maintenance -- it's best to prune blue spruce in the later winter months before the shrub's growing season.
Avoid pruning during the wet or warm season to limit the likelihood of treelopping.buzzg: Burlington MA. May 29, Angel on May 31, @Darlene Littleton the blue spruce will eventually reach a height of up to 70 feet, but it is a slow growing tree. Helpful Reply. Louis Lieberman on May 29, generally trees can be trimmed all year but it's best if done at the end of winter or the very early spring before the sap starts flowing. Helpful treelopping.buzzg: Burlington MA. Always complete this tree's pruning during the late winter or early spring months, just before the onset of its growing season.
Use sharp, sterile shears to complete the cuts. Wear gloves when pruning to protect your hands from the fairly sharp, mature treelopping.buzzg: Burlington MA. 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 treelopping.buzzg: Burlington MA.
Oct 01, How to Prune Dwarf Spruce Trees. If you just want to shape your dwarf spruce, or if your tree is young and you want to trim it to keep it small, then you can prune with a good amount of success. Taking care not to cut into the dead zone, cut back any branches that extend beyond the tree’s conical shape. Remove ½ to 1 inch (up to cm.) of Missing: Burlington MA.