Pruning your trees and shrubs is a very important
part of any maintenance program for your landscape. By pruning on a
regular basis you can avoid excessive pruning on plants which have
become overgrown.
Why prune:
Five of the most important
reasons to prune are as follows. Pruning increases light and air
circulation within the canopy. Pruning also can be used to increase the
amount of fruit or flowers on a plant. Removing unsightly suckers or
water-sprouts is another reason to prune. Returning a plant to its
natural growth habit is needed in some cases, certain plants need to be
pruned when overgrown. One example of this is the lilac. Pruning can
also be used to maintain the size and shape of a plant within the
landscape.
When should I prune:
Some plants can only be
pruned at specific times of the year. Most plants can be placed into
categories based on some of their characteristics. Plants that flower
in the spring should be pruned after flowering and before setting buds
for the next season. Because they flower early in the spring, buds will
develop on the previous year’s growth. Pruning before flowering will
not generally injure the plant but you will usually see a reduction in
the amount of flowering. Plants that flower in the summer should be
pruned during the months in which the plant is dormant before new
growth appears. Because the buds occur on current season’s growth,
pruning after growth begins could decrease floral development. Cedars
and junipers may be pruned at anytime of the year. Spruce and pine can
also be pruned at any time. Shorten shoot length (candling) during
growth in early summer for best results on these conifers. Deciduous
trees can be pruned at almost anytime. Avoid spring pruning as bleeding
may occur. Generally this will not harm the tree but can be unsightly
to the homeowner.
Pruning tips:
When pruning a tree or
shrub, never leave a stub after making the cut. Cut back to a bud or
just outside the branch collar. Never remove more than 1/3 of the
canopy when pruning. Never make your cuts flush, these cuts remove the
closing off mechanism of the plant and will have a hard time healing.
Ensure your tools are of the proper size and are sharp.
Paul
is a Certified Pesticide Applicator in the province of Alberta, Canada.
He has over 15 years experience in the lawn care industry.