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How to Prune Shrubs in Seattle in the Fall

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How to Prune Shrubs in Seattle in the Fall

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Overview

Fall pruning in Seattle is appropriate for shrubs that need no protection from the coldest temperatures. The Pacific Northwest has mild winters with occasional blasts of arctic air that send the thermometer down by 10 to 15 degrees, freezing shoots of the more tender plants. If in doubt, wait until early spring to remove branches. Also, wait until fall has truly arrived, October or early November, before pruning. Done too early, pruning will force out new growth that will be killed by frost.

Step 1

Pick out the longest branch you want to remove and follow it down inside the canopy of leaves, below the intended height of the shrub.

Step 2

Cut the branch with sharp pruning shears just above a leaf node, the place where you see a leaf scar or leaf blade. Never cut more than 1/4 inch above the node, which could kill the stub. Continue removing long branches until the shrub is reduced to your satisfaction.

Step 3

Thin branches from the inside of the shrub, if you wish, to a more tree-like outline or if less shade is needed beneath it. Work from the trunk outward, taking off the largest branches first. Remove up to one-third of the smallest shoots to give a more open feeling to the shrub.

Tips and Warnings

  • Avoid fall pruning of shrubs that flower in early spring. These have blossom buds formed in late spring and summer and you'll lose the flowers if you prune now. The best time to prune forsythia and other spring bloomers is immediately after flowering.

Things You'll Need

  • Pruning shears

References

  • Washington State University Extension:Gardening In Western Washington: Pruning
  • "Seattle Times": Take The Fear Out Of Pruning
Keywords: fall pruning, pruning shrubs, how to prune

About this Author

Over the past 30 years, Mara Grey has sold plants in nurseries, designed gardens and volunteered as a Master Gardener. She is the author of "The Lazy Gardener" and "The Complete Idiot's Guide to Flower Gardening" and has a Bachelor of Science in botany.

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