Landscaping - Maintenance
Pruning is one of the most important cultural practices in landscape management. Proper pruning helps keep plants’ attractive and vigorous and will add years to the plants usefulness. Many people are apprehensive about pruning, but knowing how, when and why to prune will end these fears.
"PB1619-Pruning Landscape Trees, Shrubs and Groundcovers," The University of Tennessee Agricultural Extension Service, 09-0134-PB1619-2/09, http://trace.tennessee.edu/utk_agexgard/48