People ask me all the time, “when to prune?” The best answer I can give is late Winter. Before any part of the tree leaves dormancy and begins to grow again. Never in the Fall. Pruning always promotes growth, and, in the Fall you want your trees to harden. What do you think? This is open for discussion. I attend lectures on this subject as often as I can find them available through horticulture societies. And, therefore, I am often seeking advice myself when it comes to trees.