Boxwood shrubs grow to a height and width of 15 to 20 feet. They are native to Southern Europe, Africa and Asia. In colder climates they are prone to winter damage. Boxwood leaves do not change color in the fall. They keep their green leaves all year long. You can plant them in either full sun or partial sun/shade. They make excellent tall hedges or you may prune them shorter and plant them in your garden. Boxwood shrubs require regular pruning so they do not grow out of control.
Decide how large you would like your boxwood shrub to grow and if you're using it as a hedge or a decorative shrub.
Decide into which shape you are going to prune the boxwood shrub. You can make it square, rounded or cone shaped.
Prune off the tips of the stems only, or about 1 to 2 inches, until you have your desired shape. Do not over prune. If you need to prune off more than just the tips, gradually do so over a period of time so the boxwood shrub can recover, according to North Carolina State University Extension.