Thuja "Green Giant," commonly called "Green Giant" arborvitae, has dense foliage and grows up to 60 feet tall. "Green Giant" arborvitae makes a good hedge or ... Avoid plants with multiple broken ...
Reliable plants used for hedges, barriers and windscreens, arborvitae (Thuja spp.) vary in mature height according to the species and cultivar chosen, from very tall trees to dwarf varieties.