first step to pruning arborvitae is to understand when and
why to prune. If a tree is mature, many of the branches may
not be as lively as they once were. This may be from lack
of sunlight or proper nutrients. When this happens, pruning
the plant down may provide the proper light to the branch,
rejuvenating it. Pruning will also help to stimulate new growth.
arborvitae may also be strictly ornamental. A row of arborvitae
trees may be pruned down to shrubs, for a more aesthetically
pleasing screen. Pruning arborvitae may also entail removing
branches and growth that shoots out of the border of the plant.
Removing these will make the plant seem fuller and healthier.