Experts and BHG readers answer.
What exactly is considered "winter" pruning time?
"Winter pruning" usually refers to dormant pruning, i.e. the plants should not be actively growing. The time frame can vary from location to location, but generally includes the time from after the tree or shrub loses its leaves in fall until the buds begin to push new growth in the spring. Late winter is usually a better time to prune than early winter because pruning can stimulate dehardening of the plant that might lead to winter injury if temperatures drop drastically soon after pruning.