American Pillar Arborvitae, like tall sentinels standing guard, will quickly provide a dense privacy screen or windbreak blocking sound and weather. This evergreen shrub was selected for its rapid growth rate, dense branching structure and tall narrow habit. Remains stately and impressive with no pruning.Full Speed A HedgeŽ American Pillar retains its uniform columnar shape and the dense foliage provides excellent shelter for songbirds. Exceptional winter hardiness and readily withstands heavy snow. Crisp white snow clings to the bright green feathery foliage to create a dazzling picture-perfect snapshot worthy of your holiday greeting cards.