When to Prune Evergreens: Pine, Spruce and Fir
Evergreen trees need little pruning. When they do, the timing depends on how each one grows, and one wrong cut on a pine never grows back.
When to prune evergreens depends on the tree. Pines put on one flush of growth each spring and are pruned while that new growth is still soft. Spruce and fir can be pruned almost any time, but late winter is best. Cedar, yew and hemlock grow all season and can be trimmed into midsummer.
Most of the time the right amount of pruning for a pine or spruce is none. Both extension services this guide draws on say these trees need little pruning and should keep their natural shape.
Evergreens at a glance: pine: in spring, pinch or cut half to two-thirds of each new candle before the needles open; never cut back into older wood. Spruce and fir: best in late winter, cutting back to a side bud. Cedar, yew, hemlock: spring to midsummer. Juniper: tip prune in summer, not after August.
Trimming a cedar hedge? See When to Prune in Canada for cedar, juniper and yew hedges.
Pines: The Candle Stage
Pines grow once a year, from buds at the tips. In spring those buds stretch into pale shoots called candles. To keep a pine compact and dense, Wisconsin says to remove about half to two-thirds of each candle before the needles expand, by pinching it or cutting it with hand pruners.
The rule that matters: pines make buds only at the tips of this year’s growth. Cut a branch back into older wood and it will not sprout; Minnesota warns this leaves dead stubs. Never prune a pine further back than the current year’s growth.
Spruce and Fir: Late Winter
Spruce, fir and Douglas-fir have side buds that sprout when a tip is removed, so they can be pruned at almost any time. Minnesota says late winter, before growth begins, is probably best, and some spring pruning does no harm. Cut a branch tip back to a side bud and do not leave stubs.
Wisconsin adds that in early summer you can remove about two-thirds of an unbranched tip to make the tree fuller.
What Not to Do
Wisconsin is firm on two points for pine, spruce and fir: do not remove the lower branches, which destroys the tree’s natural form, and never remove the main central stem. Prune only to take out crossing, dead, diseased or broken branches, or to keep the natural outline.
Minnesota adds one exception for young trees: where a tree has two leaders and a single leader is wanted, remove one of them.
Cedar, Yew, Hemlock and Juniper
| Plant | When | Note |
|---|---|---|
| Cedar (arborvitae), yew, hemlock | spring through midsummer | have buds further down the stem and can be sheared |
| Juniper | summer, tips only | do not cut into bare wood; not after August |
| Pine | spring, at the candle stage | never past this year’s growth |
| Spruce, fir | late winter | cut to a side bud |
Juniper growth cut after August does not harden before winter, Wisconsin notes. For hedges see when to prune cedar hedges and when to trim hedges.
Frequently Asked Questions
When should I prune a pine tree?
In spring, when the new shoots (candles) have stretched but before the needles open. Remove half to two-thirds of each candle.
Can I cut a pine branch back to make it smaller?
Only within this year's growth. Pines do not sprout from older wood, so a cut further back leaves a dead stub.
When should I prune a spruce tree?
Late winter is best, though spruce can be pruned almost any time because it has side buds that sprout. Cut back to a side bud.
Should I remove the lower branches of my spruce?
No. Wisconsin advises leaving the lower branches, which are part of the tree's natural form.
When can I prune junipers?
Tip prune in summer and stop by the end of August, so new growth hardens before winter.
Do evergreens need regular pruning?
Rarely. Pine, spruce and fir need little pruning beyond removing dead, broken or crossing branches.
Sources
- University of Wisconsin–Madison Extension — Pruning Evergreens
- University of Minnesota Extension — Pruning trees and shrubs (reviewed 2026)