Start with clean, sharp, good-quality tools appropriate for the job at hand. To prevent the possible spread of disease, disinfect your tools after each cut with a solution of one part chlorine bleach or rubbing alcohol diluted with 10 parts water.
Step 1: First, remove any dead or diseased wood. next, select two to four of the oldest, largest stems, equally spaced around the shrub. when removing old stems, try to make the cut as close to the base of the stem as possible.
Step 2: You may need to prune some of the younger stems and suckers as well. Start by removing any branches that are crossing or rubbing against each other, then prune those that look out of place or are crowding the centre of the plant. Aim to leave a balanced variety of old and new, big and small stems.
Step 3: in general, to head back a stem that’s too long, make the cut just above a bud that is facing in the direction you want the new growth to go – usually toward the outside of the plant. This keeps the centre of the shrub open, which is important for good air circulation and looks more natural. if the plant has opposite leaves and one bud is facing in the wrong direction, simply rub it off. Do not leave stubs above the buds, as they will die and provide an entryway for disease and insect pests.