Thuja occidentalis Columbia

Thuja occidentalis ‘Columbia’ is a reliable upright arborvitae selected for its dense growth and cold-hardiness in northern climates. Developed with durability in mind, this cultivar offers a strong vertical form while maintaining fuller branching than many standard columnar thujas. Deep green foliage holds well through winter with minimal bronzing. 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 matures into a medium-sized evergreen suitable for screens, hedges, and landscape structure.