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Winterization

Winter Pruning

In most cases winter pruning can benefit both tree and home owner. With most species of deciduous trees in Colorado, pruning while dormant is as good if not better than at other times. Dormant trees provide the aborist with a better view of the trees scaffolding (branch structure). The tree trimmer can easily identify unwanted deadwood, limbs, stubs and old storm damage. Trees such as American elm and many fruit trees should be pruned while dormant reducing the potential for spread of disease. Maples and birch should be pruned in the summer to avoid bleeding. Although bleeding does no harm to the trees metabolism, it can be unsightly. Many of the summer flowering shrubs should be pruned in early spring or while dormant. Spruce shaping can also be done while the tree is dormant. While evergreens like junipers should be done from later spring through the summer months. Savings to the home owner of winter pruning can range from 10 to 15 percent due to the usual slowdown. So take advantage of your local arborist and prune those trees and shrubs in the winter.

Winter Watering

Winter and spring tree watering is very important in northern Colorado. Trees should have ten gallons of water per inch caliper twice a month. In addition anti transpiration sprays can be applied to enhance water retention in conifers. This spray is a polymer that encapsulates the needles it is non-toxic and environmentally friendly. Keep in mind that lawn irrigation systems do not water trees adequately. Through the year supplemental water is required for your entire tree and shrub needs.

Arborist Terminology

Crown reduction (shaping): Reducing the height and/or spread of a tree. Caution should be given to the ability of a species to sustain this type of pruning

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