Thuja 'Green Giant' is a evergreen arborvitae. The fastest-growing privacy hedge available — capable of 3 or more feet of growth per year — with dense, rich dark green foliage on a narrow, strongly pyramidal form. The definitive evergreen privacy solution. Thrives in full sun with moist, well-drained soil. Moderately drought tolerant once established. One of the most cold-hardy and reliable evergreen choices available. The most popular evergreen for privacy screens, hedges, windbreaks, and foundation plantings — offering reliable, dense, year-round coverage with minimal maintenance.