Emerald Green Arborvitae trees (Thuja occidentalis) are narrow evergreens with a pyramidal shape. They have dense emerald green foliage that lasts all year round. They are very popular for dividing yards. They prefer full sun or partial shade and reach 10-15ft tall and 3-4ft wide at full maturity. We have 4-5ft or 6-7ft feet trees available. Click customize to pick your desired tree size. The second picture shows our 6-7ft option.