Thuja occidentalis DeGroots Spire

Thuja occidentalis ‘DeGroot’s Spire’ is a narrowly columnar arborvitae selected for its exceptional vertical form and fine-textured foliage. Discovered in the mid-20th century, this cultivar was valued for providing height without bulk, making it ideal for tight spaces and formal designs. Dense, dark green sprays create a crisp, architectural silhouette that holds its shape naturally. It grows best in full sun to partial shade with evenly moist, well-drained soil and has a moderate growth rate. Hardy in USDA Zones 3–7, it typically reaches 12–15 feet tall while remaining very narrow.