The short answer: for most trees in the Willamette Valley, late fall through late winter is the best time for structural pruning. But the right timing depends on the species and what you’re trying to accomplish.
Dormant season (roughly November–February)
Leaves are off deciduous trees, so branch structure is easy to see
Less stress on the tree and fewer active pests
Wounds start closing as soon as growth resumes in spring
Good for maples, oaks, ash, and most shade trees
Late spring through summer
Good for slowing growth on vigorous trees
Useful for clearance pruning, since you can see exactly how low limbs hang when fully leafed out
Best time to spot and remove deadwood, which stands out clearly against live foliage
After flowering
Ornamental flowering trees like cherries, dogwoods, and magnolias are often pruned shortly after bloom so you don’t cut off next year’s flowers.
Anytime
Dead, broken, or hazardous branches should come out whenever they’re found. Don’t wait for the “right season” on a limb hanging over your driveway.
A note on conifers
Douglas-fir, cedar, and other conifers tolerate pruning most of the year, though many arborists avoid heavy cuts during hot, dry stretches.
Our winter schedule fills up fast. Call Wolfpack Tree Care at 541-556-9256 to book dormant-season pruning anywhere in Lane County.
