Question: My photinias are too tall. Can I cut them back by half, and when should I do it?

Answer: If you’re trying to maintain photinias at less than 6 feet of mature height, you’re really just waiting for failure. These are very large plants, and they need to be used where they can grow to a full 8 to 12 feet of height and 6 to 8 feet of width. If you do decide to try pruning them back severely, do it in late winter, just before the new coppery growth comes out in the spring. Trim them one limb at a time, using only hand shears and loppers to maintain a natural shape.