Saving your woodies during winter

Wed. Nov. 9, 2016

Click below to listen to my Garden Bite radio show:  Saving your woodies during winter

Winter sun, wind, temperature fluctuations, snow and ice can make for a deadly combo for your trees and shrubs.  Sunscald happens on bright winter days when the sun heats up the cambium layer on the south and/or west side of your trees.  The cambium layer moves water and nutrients through the tree, if it heats up, it starts to move and then freezes when the sun goes down and can kill your tree.

Sunscald damage on spruce

Sunscald on Honeylocust

A white tree wrap or guard can help prevent damage to smaller and/or thin barked trees.

white spiral tree guard

Don’t fertilize now.  But DO water your trees, shrubs, perennials up until the ground freezes sometime in December.  Especially newly planted trees and because we’re experiencing drought this year.

Evergreens commonly suffer from winter damage.  Winter Injury [University of Illinois Ext.]   Another great site on tree/shrub injury  of a variety of issues is from the University of MN Ext.

The most susceptible evergreens are Yews, Arborvitae and Hemlocks.  The best protection is to wrap them in burlap, although not attractive, it can really be worth it.

evergreen-with-winter-damage

wrapped evergreens
wrapped evergreens

 

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