The right period to trim trees is during winter when they’re dormant. There are multiple reasons why you should trim trees during winter. Firstly, trees are likely to heal faster and stay strong if you trim them during winter. Your trees may experience minimal flowing of sap which lessens the infestation of insects. Trimming trees during winter may also minimize the risk pest infestation. Again, during winter, visibility is clearer, and you can perform an excellent job. Plus, you can work quickly on different trees during this time. Also during this time, tree trimming services are often cheaper.