How to prune white spruce

Late winter for dead or diseased wood removal; late spring to trim new candle growth before it hardens. Remove dead branches cleanly at the branch collar with a pruning saw or secateurs. To slow growth, snap or cut new candles by up to half in spring before they fully extend — never cut into old, bare wood.

As needed for dead wood; candle-trimming optionally once each spring. White spruce is a large conifer that needs very little routine pruning. Remove dead, broken, or diseased branches at any time of year. Avoid heavy pruning — spruces produce a single terminal leader and are difficult to reshape once cut. Lightly trimming candle growth in spring can slightly reduce size on young trees if needed.

Remove dead branches cleanly at the branch collar with a pruning saw or secateurs. To slow growth, snap or cut new candles by up to half in spring before they fully extend — never cut into old, bare wood.