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Hoe! Hoe! Hoe! Green Giant! 'Green Giant' arborvitae, that is (Thuja standishii x plicata).
A U.S. National Arboretum elite plant, this ornamental, pyramid-shaped conifer is an outstanding
landscape tree that gives you the look you want with improved performance.
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. ‘Green Giant’ is tolerant of a wide variety of soils and is hardy in USDA Hardiness Zones 5 – 7.
Receiving a Pennsylvania Horticultural Society Gold Medal Plant Award in 1998, this exceptional
landscape tree can be used as an evergreen screen, hedge, or as a single specimen.
[Check out our 'Green Giant' Fact Sheet here].
'Green Giant' arborvitae 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 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 here, in Washington, D.C., but they have
thrived despite our hot, humid, and sometimes dry Mid-Atlantic summers.
All of these qualities have made 'Green Giant' arborvitae a highly desirable tree among landscapers, nurserymen, and homeowners.
'Green Giant' is propagated easily from cuttings, and so is readily available from most wholesale and retail nurseries,
as well as numerous mail order sources.
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