Native to (or naturalized in) Oregon:
- Conifer, evergreen shrub or tree, 4-6 ft (1.2-1.8 m) high, 3-5 ft (0.9-1.5 m) wide, [as a tree it may reach 40 ft (12 m) tall], dense, globular to ovoid, with branchlets held vertically and nearly parallel in arrangement. Bark thin, red-brown, separating into papery scales. Leaves scale-like, bright green but may turn brownish in winter, nearly alike on both sides, those on a main axis glandular, ending in a free spreading point. Cones ovoid, 1.5-2.5 cm long, fleshy, blue before they mature, scales thick and hooked.
- Sun. Tends to open up with age, and may have to be tied.
- A popular cultivar is 'Aurea Nana' [Dwarf Golden Arborvitae, or Beckman Golden Arborvitae], it is dense, dwarf, and has an ovoid form; grows to 10 ft (3 m). Its leaves are initially golden-yellow, but fade to a light yellow-green. Here are two more cultivars:
- 'Morgan' - dwarf shrub, yellowish foliage, turns orange in winter, grows about 8 cm per year
- 'Van Hoey Smith' - shrub, upright, yellow-gold variegation, slow growing, about 6-12 inches (15-30 cm) per year
- Hardy to USDA Zone (5)6 Native to Korea, Manchuria and northern China.