The Green Giant is an exceptional landscape tree for use as a privacy screen, hedge, windbreak, or single specimen. The Thuja Arborvitae, also known as the ” Green Giant, “is a dense, pyramidal, hardy dark evergreen tree. This variety is faster growing than other species of arborvitae. The foliage can be sheared and kept at a desired height and width, which as a result, makes them great for any size of privacy screening you desire. The Green Giant Arborvitae grows best when planted in full sun. In the Mid-Atlantic region, the average growth rate is ~2 feet a year, therefore reaching a height of over 35 ft, perfect for screening tall buildings.
Their dense, deep root structure enables them to withstand intense wind storms and icy conditions. Optimally, when planted in full sun, every 5′ apart, a dense privacy screen can be achieved within three to four years. During late fall, Green Giants will take on a bronze color for winter. Additionally, the Green Giant Arborvitae is deer resistant and seldom bothered by insects. Perfect for windbreaks and reducing noise, as well as privacy.
Green Giant Arborvitae Sizes and Prices
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Arborvitaes Grown Locally on Our Farm – Educational Video
Thuja Arborvitae Growing Conditions
The Green Giant Arborvitae will best achieve a full, beautiful “Living Fence” TM if grown in a minimum of 6 hours of direct sun a day. They are sun-loving evergreens but will survive in partial shade. However, within three years, the trees will start to thin out and not provide you the desired privacy. The Green Giant tolerates various soils but prefers moist, well-drained soil. They are wind resistant once established and withstand heavy ice or snow loads. When planted 5′-6′ apart, Green Giants provide a fast-growing evergreen privacy screen within Zones 5-7. Thus making Green Giants perfect for windbreaks, reducing noise, and privacy.
Thuja “Green Giant” Arborvitae Origin
Initially developed in Denmark in the 1930s, Green giant arborvitae is a hybrid cultivar of T. plicata and T. standishii (a cross between the western red cedar and Japanese arborvitae). Later, the D.T. Poulsen Nursery introduced it to the U.S. in 1967 by shipping a specimen of the Thuja (standishii x plicata) to the U.S. National Arboretum. Upon observation, this plant exhibited exceptional landscape quality, and propagations were distributed nationally. Unfortunately, during distribution, the name and ID of this clone became confused with that of another arborvitae from the same source, T. occidentalis “Giganteoides’. As a result, the ID of this clone as the Thuja (standishii x plicata) hybrid was resolved by Susan Martin, USNA, Kim Trip, New York Botanic Garden, and Robert Marquard, Holden Arboretum, via records research, nursery inspections, and isozyme analysis. To clarify, they selected the name Thuja ‘Green Giant’ to officially identify and market this clone.
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