Peach trees are fickle fruit trees that need plenty of water, sunshine, and proper pruning for optimum production. The shorter the branches, the more strength they have and less chance of snapping under the weight of the fruit. When pruning a peach tree, keep in mind that an open center is the best shape as this allows the sunlight to reach most of the branches. The best time of year to prune is in February once the danger of frost has passed but before any fruit has begun blooming. How to prune it: When to prune it: Happy Gardening - Wikianswers