There are many trees and shrubs that benefit from pruning during the winter. Pruning during winter will encourage new growth in the spring. Maple, Dogwood, Willow and grapevines should be pruned during the winter because they “bleed”. The sap loss will encourage bugs and disease. Spring flowering shrubs, such as, Forsythia, Gardenia, Climbing Roses, and Azaleas, should not be pruned until after they bloom. Pruning some flowering shrubs, such as Rose of Sharon, Butterfly Bush, Golden Rain tree, and Hydrangeas, can be pruned anytime before spring.