Cryptomeria Spiralis ShrubsCryptomeria Spiralis Shrubs for Sale Online Cryptomeria Spiralis Shrubs (japonica) has bright green foliage, somewhat like the skin of a Granny Smith Apple. This cultivar of the native Japanese cedar is slow growing and is a semi dwarf at 6 to 8 feet in 10 years. The habit is generally mounding when in its younger years but can be variable and eventually is more upright as it matures.