The 'Pyramidal' variety has an neat, upright growth habit and will reach 8-10' tall and 4-6' wide at maturity. It has dark, green foliage and responds well to sheering.
The 'Montgomery' is a slow-growing, semi-dwarf variety that will slowly reach 4-6' tall and 6-8' wide at maturity. It has a dense, spreading growth habit and is prized for its vibrant, blue-green foliage.