The 'Black Dragon' is prized for its unique branching habit and deep, green foliage that darkens as it ages. It has an open, pyramidal growth habit and will reach 8-10' tall and 4-6' wide at maturity.
The 'Rock Garden' is a dwarf variety that will reach 1-2' tall and wide and it perfect for containers and rock gardens. It is prized for its dark-green, deeply-toothed foliage that persists throughout the year.