When is the best time to prune fruit trees?
I have dwarf apple, pear, peach, plum, apricot, and cherry trees. I planted them in March of 2012 and pruned at knee height(most were already knee height). In 2013 I pruned in January, most trees are over 6' already. Is January too early? Can I prune them all around the same time? I believe my last frost date is April 15th. Just would like to know the optimum time for winter pruning.