Thuja occidentalisThuja occidentalis

  • BOTANICAL NAME: Thuja occidentalis
  • PRONUNCIATION: THU-ya ok-si-den-TA-lis 
  • COMMON NAME: Eastern Arborvitae
  • FAMILY: Cupressaceae
  • NATIVITY: Northern New England south through the Mid-Atlantic region west to the Mississippi.  Found in bottomlands and swamps.
  • GROWTH HABIT: Dense pyramidal tree with spreading flattened sprays.  Usually a single trunk.. 
  • SIZE: 30' - 60' in cultivation.
  • HARDINESS: Zone 3 -  7
  • CULTURE: Full sun.  Will tolerate a range of soil moistures from wet to dry.
  • FACULTATIVE STATUS:  Facultative Wetland
  • LANDSCAPE USE: Good for hedges, privacy screens and foundation plantings.  Can be used as an accent plant.
  • FOLIAGE: Scale-like foliage on a flattened spray.  Discolors in winter, regreens come spring.
  • BUDS:
  • BARK: Reddish-brown.
  • FRUIT: Cones 1/3"-1/2" long, mostly upright.
  • PROPAGATION: Seed, cuttings.
  • PESTS: Bagworm, leaf miner, spider mites, deer.

Cone  Cone  Cone  Leaf  Flattened spray

University of Delaware

University of Delaware Botanic GardensNewark, DE 19716Phone: 302 831-0153