From perennials that need to be pruned in the fall to trees that need a light trim in the dead of winter, a gardener's pruning shears never get any rest. However, it can be a little dizzying trying to ...

Q: How far back can I trim 'Mt. Airy' fothergilla? When? And how can you prevent them from sending off suckers? I really don't want to remove them. I just need to know how to keep them under control.