I bought a star magnolia from a local nursery 4 years ago. I live in Eastern Washington, which has cold, snowy winters and hot summers. The magnolia was already in a tree shape when I purchased it, not a shrub shape. Each spring there have been branches that have no flowerbuds on them. My husband has cut them off. This spring, we have one branch that has no flowerbuds on it. The branch is about 3/4 inch in diameter. Should we cut this branch off? If so, when? After the tree stops flowering? There is a lot of space between branches, it is not a dense tree.