Arborvitaes make perfect evergreen screens. Fast-growing, with dark-green, feathery foliage, they are one of America's most popular landscape plants. 'Green Giant' has been around for years, and is known as the fastest growing arborvitae on the market. It often outgrows a space too quickly, which makes its offspring a perfect fit for many of us. 'Jr. Giant' grows 15-20' tall and 8-10' wide, which is about half as big as its parent. Full Sun is best, but it will tolerate some shade. Hardy to Zone 5. Like 'Green Giant', it is deer resistant.