Windbreak tree: Green Giant Arborvitae (Thuja standishii x plicata 'Green Giant') Fast Growing Evergreen Tree, up to 3' per year. Great Screen, Hedge, or Windbreak. Plant 5' to 6' apart. Grows 50' to 60' high with 12' to 20' spread. Zones 5 to 7.
Thuja Green Giant Arborvitae (Thuja Standishii Plicata) - Zone 5-9 Part to Full Sun 20'-40' Height 12'-20' Width. Fast growing (3'-5' yr) columnar evergreen tree (hybrid of Japanese Thuja &Western Redcedar)with light green soft foliage. Plant 3'-5' apart for short 8' hedge (trim 1x yr) or let grow into a broad large screen in a uniform shape & height, blocking noise, wind, snow & creating absolute privacy. Drought tolerant (once established), deer, disease & insect resistant in almost any…
Thiuja green giant hedge. grows 3' per year. Planting a Privacy Screen: When planting Thuja Trees as a privacy screen, space your trees between 4 and 8 feet apart for a solid barrier. Your privacy screen will eventually get to a height of 20 to 40 feet high. If you want your trees shorter, plant closer together. If you want them taller, plant further apart.
Fast Growing Trees for Privacy or Shade. Learn more about great trees that are faster growing than many others...and nice looking too! Shown here are Leyland Cypress. http://www.landscape-design-advice.com/fast-growing-trees.html