The fastest growing privacy tree is the Lombardy Poplar. It averages 5 to 6 feet per year and can grow even faster! With rapid growth rates of 3 to 5 feet per year, Thuja Green Giant, Leyland Cypress, Wax Myrtle, Cryptomeria Radicans, and Arizona Cypress trees, like the Carolina Sapphire Cypress are fast growing evergreen trees that are perfect for privacy. #1 Garden Blog Hand Selected Privacy Trees Free Shipping On $119+ #FastGrowingPrivacyTrees #PrivacyTrees #Plantingtree