Not only does a freshly trimmed hedge look stunning to your home's curb appeal, proper maintenance is also the key to a healthy hedge. By trimming your hedge you are maintaining a desired size to your yard. Hedge trimming also allows the bare areas to fill, at the same time removing any dead or diseased parts of the hedge before spreading or getting bugs in the dead wood. This will all help to make sure your hedge stays healthy and green. For best results it is best to trim your hedge annually. Fertilizer stakes can be added to give proper nutrients that your hedge might not be getting naturally.