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Thuja plicata x standishii

'Green Giant' arborvitae
Price Code: 
$18.50/2 gal (32"), $12.00/gal (20"), $48.50/full, 5'-6'
In Stock

The National Arboretum’s breeding programs are recognized for developing noteworthy plant introductions for the horticulture and nursery industry, and 'Green Giant' arborvitae (Thuja standishii x plicata) is no exception. Thuja ‘Green Giant’ is tolerant of a wide variety of soils and is hardy in USDA Hardiness Zones 5 – 7. It is an exceptional landscape tree can be used as an evergreen screen, hedge, or as a single specimen. (From the U.S. National Arboretum website)

It is virtually maintenance free, as well as pest and disease-resistant, making it a superior alternative to the disease-prone Leyland cypress (x Cupressocyparis leylandii). Additionally, deer grazing does not appear to be a problem for these hardy trees—certainly a beneficial quality for our local landscape plants.

'Green Giant' arborvitae increases in height rapidly, growing 1 – 2 feet per growing season, sometimes more. A hedge row of ‘Green Giant’ was planted on the grounds of the U.S. National Arboretum in 1998. At the time of installation, the trees were 3 – 3 ½ feet tall on 6 ½ foot centers. Ten years later, the trees stand 18 – 20 feet tall and 8 feet wide. Not only have they withstood the winter snow and ice in Washington, D.C., but they have thrived despite the hot, humid, and sometimes dry Mid-Atlantic summers.

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