Gardening - When to Prune

Pruning that is done by the amateur gardener isor it may be necessary to reduce by two or
carried out to maintain a plant that has beenthree shoots only the most vigorous and strongly
already trained in a nursery. However, many keengrowing branches so as not to put too much
gardeners grow shrubs and even trees fromstress on the plant's other stems.
cuttings and seed, even though it is better toPruning is also carried out to maintain the
leave a large tree to the experts, because of theyoungest shoots which are the most productive.
special equipment required and the risks involved.The last but by no means the least important aim
The principles that must guide the gardener whenin pruning is to protect the plant's health.
he picks up a pair of secateurs should always beAll branches that are dry, diseased, broken or
'a well pruned plant is a beautiful and healthy plant'damaged in any way should be removed by
and 'pruning well carried out should almost becutting into the nearest healthy wood immediately
undetectable'.above a well-developed shoot. Smaller branches
Trees do not necessarily have to be pruned. Thethat are too slender, too thick or that cross in the
reason for pruning them is to shape or keep acenter of the plant or any that are badly
specimen that displays the finest features of apositioned should also be removed by cutting at
particular species. Any work carried out should bethe base of the young wood but not the main
limited to encouraging or assisting the naturalbranch from which it is growing.
development of each plant as it grows from aThese actions, which are intended to eliminate
young tree into a fully grown one and to avoidpossible sources of disease and to maintain an
defects that might turn out to be harmful to theopen, regular shape into which sun and air can
tree.penetrate freely, should be carried out annually on
Shrubs can be pruned to emphasize theirall plants regardless of when they flower. In areas
ornamental features but it is important to strike awith a very hot climate this can be the end of
balance between encouraging the production ofsummer. In cold areas it is better to wait until the
flowers and allowing the plant to continue to growend of winter. Where there is snow it is prudent
and develop. Another objective in pruning is toto anticipate possible damage and in autumn cut
maintain the characteristic form of each species,the longest braches back or tie them into bundles.
encouraging the branches and stems to developObservation and an understanding of the ways in
and grow in a way that allows the plant towhich a plant grows are useful when deciding if
achieve its natural potential.and when to prune. First it is important to check
Sometimes pruning is needed to encourage thewhether the plant flowers on wood grown during
growth of a properly balanced plant. The weakestthe same year as the flowering taking place or on
shoots may need to be cut back hard to one,wood that grew in a previous year. This
two or three shoots to stimulate vigorous growthknowledge will dictate the best time to prune.