Thuja Green Giant Arborvitae (Thuja Standishii Plicata)-Zone 5-9 Part to Full Sun 20-40' Height 12-20' Width. Fast growing (3-5' yr) evergreen tree light green soft foliage.Plant 3-5' apart for short 8' hedge (trim 1x yr)-plant close together to grow taller & narrower. Or let it be a broad large screen in a uniform shape, blocking noise, wind, snow & creating absolute privacy. Drought tolerant, deer, disease & insect resistant in almost any soil. Hybrid of Japanese Thuja & Western Red Cedar.