Mature Height: 35 to 50 feet; Mature Spread: 8-12 feet; Growth Rate : 2-4 feet per year With a growth rate of 3-5 feet a year, this tree has one of the fastest growth rates of any Arborvitae available for sale . Growth Rate. This hybrid was developed in the 1930's in Denmark and was introduced to the U.S. in 1967 when the U.S. National Arboretum received a specimen. The tree is known for the fast rate of growth it exhibits and that it keeps most of its green color throughout the winter. In the proper growing environment, Green Giant Arborvitae can grow at an impressively fast rate, up to 4 … Green Giants year zero 21″ 20″ 20″ (2011) Green Giants year one 37″ 35″ 32″ (2012) Green Giants year two 54″ 50″ 45″ (2013) Fairview Upright Arborvitae; Thuja occidentalis 'Fairview' Height: 15-20' Spread: 5-6' Zone: 3: Our signature arborvitae. by David Lavalley. ... --Growth Rate : Fast ( 2 - 4 feet avg per yr )--Hardiness Zones : 5 - 8 This is a low-maintenance tree once established and can be used as a hedge, screen or alone as an accent tree. They are virtually immune to some of the diseases that can affect other arborvitaes and are deer resistant. These shrubs have a relatively slow growth rate. The Thuja Green Giant is the perfect fast-growing evergreen for a privacy hedge or windscreen. Similar to our Hetz's Winter Green, with fuller growth to the top of the plant. Good snowload survivor. The Green Giant Arborvitae (Thuja standishii x plicata 'Green Giant') is also called Western Red Cedar. This has become one of the most desired landscape trees in the US, and for good reason. Left unpruned, Thuja Green Giants planted in rows can reach as high as 30 to … The "Green Giant" Arborvitae is a tall, cylindrical tree that is both taller and wider than the "Emerald Green" Arborvitae. Nice pyramidal shape with dense, rich green foliage that has a graceful fernlike texture. Green Giant Arborvitae ( Thuja ) is a very vigorous growing arborvitae - fastest growing of all the arbs. This slow growth rate is the reason many homeowners choose to use different methods of planting and spacing these shrubs in their landscape. More compact and formal than Nigra, maintaining a tight pyramidal habit. The tree supplies seeds and shelter for birds but is less appealing to deer. Growth Rate This tree grows at a fast rate, with height increases of more than 24" per year. The evergreen Green Giant Arborvitae is a fast-growing arborvitae hybrid that has been promoted as a disease-free substitute for other evergreens, especially in the humid Southeastern United States. Appearance . They grow best in full sun but are shade tolerant. Green Giant-Great option for privacy screens. Thuja 'Green Giant' is a large, needled, evergreen, conifer tree that is a hybrid cultivar of T. plicata and T. standishii (a cross between the Western Redcedar and Japanese arborvitae, respectively). Plant one every 5 to 6 feet and they quickly create a dense barrier. The fresh green foliage consists of flat sprays formed by overlapping scales. There are many cultivars that vary in height and other characteristics. You can easily trim them once a year to your desired height. The following is from a U.S. Dept. Rich green foliage maintains color through winter. Rapid growth to up to 60 feet ; Green year-round ; Low-maintenance; Tolerant of insects, disease, and adverse weather conditions; No need to prune ; Salt-sensitive ; Read on to learn all the details on Thuja Green Giant trees, from their appearance to their lifespan and the zones they thrive in. Giant arborvitae is a dense, stately evergreen tree native to the Pacific Northwest, often used as a specimen or for screening. on August 6, 2012. ArborDay.org says that in one year, you can expect the Emerald Green arborvitae to grow about 12 inches, or 1 foot, in height. The green giant arborvitae grows to a height of 50–60' and a spread of 12–20' at maturity. Thuja Green Giant Growth Rate – A Documentary with Photos Showing How Fast They Grow. of Agriculture study of the Green Giant: " Green Giant ' is a vigorously growing, pyramidal evergreen with rich green color that remains outstanding throughout hardiness range. Great for privacy screens and borders. 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