Green Giants make the perfect screening evergreen. The pictures shown here were taken at the US National Arboretum in Washington DC where they were planted in the fall of 1998. When planted they were 3 feet tall and planted on 6 1/2 foot centers. They were watered the first year and that was all.
According to Susan Martin, curator of conifers, who did a lot of the evaluation of these conifers, they grew 3 feet the first year (1999). The above pictures were taken in August of 2001 and they are now 10 to 12 feet tall. They have never been trimmed, but if trimmed they can easily be kept at 4' to 5' and very narrow.
There is no known insect or disease or deer that have bothered this plant and it can be trimmed to any height or width to create the ultimate natural or formal hedge. The young man in the white shirt is Ed McCarthy. He works at the arboretum and planted the Green Giants in the fall of 1998. He says they are the best plants he has ever planted. The person in the blue shirt is Mike Shade, owner of the Botany Shop. The Green Giants are the toughest, disease, insect, deer and ice resistant evergreen I have ever used. I am 6' tall with a 6' finger-tip to tip width so you can see the height to width ratio of these trees.
For a faster solid screen plant 5 feet apart.
Cuttings from these soft needled, fragrant evergreens make excellent Christmas decorations.
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