The "Black Dragon" tree (Cryptomeria japonica "Black Dragon") is a semi-dwarf cultivar of the Japanese cedar, a slow-growing coniferous evergreen. "Black Dragon" trees grow up to 10 feet tall and 4 feet wide and have a natural pyramidal shape. The needles are green, but darken to a blackish hue in the summer. The slow growth rate and smaller size of the tree make it suited to container growing. It can also be planted in the ground.