Trimming back a hedge helps improve its health. In fact, it’s much like trimming your hair. Your hair grows from the root, not the tip, and the hair at the tip is often quite dry and “dead”.
By removing these dead pieces, your hair grows healthier, shinier, and more beautiful. These same principles apply to hedges. Trimming them regularly can stimulate new growth, prevent the development and spread of disease, and even redirect their energy and resources into new growth, which can improve them overall.