how tall do green giants grow
âGreen Giantâ arborvitae can grow to a maximum of 60 feet tall and 12 to 18 feet wide. Many people do not realize how large they will get when they bring them home from the nursery and plant them too close together -- they should be at least 5 feet apart for a hedge -- or not give them enough vertical room.ith its tall, statuesque green boughs and tolerance to a wide variety of conditions and pests, âGreen Giantâ (Thuja âGreen Giantâ) doesnât have many strikes against it. A highly structured looking arborvitae, âGreen Giantâ is hardy in U.S. Department of Agriculture plant hardiness zones 5 through 8.
Thuja âGreen Giantâ is a fast-growing tree that can grow up to three feet a year.The mature height is 60 feet. It will reach 30 feet in 30 years, with a final spread of 12-20 feet. On its own, it makes a majestic focal point tree for the corner of the yard.Planted in a row, it forms a dense hedge quickly.huja âGreen Giantâ is a fast-growing tree that can grow up to three feet a year.