Established hedges require trimming to keep them dense and compact. Formal hedges require more frequent trimming than informal hedges. Each hedge has its own unique structural and species specific characteristics and obstacles to pruning. It is important to know how different species react to trimming to properly trim and maintain a healthy hedge for a long life. LawnPro Landscapes Ltd has a great team of professionals for all your hedge trimming needs. Our maximum trimming height is 15′ ft.