SelecTree: Tree Detail

AMERICAN ARBORVITAE
Thuja occidentalis

Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis Thuja occidentalis

Photo Locations: Washington Park Arboretum - Seattle, WA, The Morton Arboretum - Lisle, IL, Stanford, CA, UC Berkeley Botanic Garden - Berkeley, CA, The National Arboretum - Washington, DC, Leaning Pine Arboretum - Cal Poly San Luis Obispo, CA and Arnold Arboretum - Boston, MA

General Notes

Needs ample moisture.

Native to Northeastern North America.

Family: Cupressaceae

Tree Characteristics

Erect and requires ample growing space.

Conical Shape.

Has Evergreen foliage.

Height: 30 - 60 feet.

Width: 10 - 15 feet.

Growth Rate: 12 to 24 Inches per Year.

Longevity 50 to 150 years or more.

Leaves Scalelike, Medium to Light Green, No Change, Evergreen.

Flowers Inconspicuous. Flowers in Spring. Has separate male and female flowers on the same tree (monoecious).

Beige or Brown Cone, Medium (0.50 - 1.50 inches), fruiting in Summer.

Bark Red Brown, Exfoliating or Furrowed.

Shading Capacity Rated as Dense in Leaf.

Litter Issue is Dry Fruit.

Tree Site Conditions & Constraints

Sunset Zones 1 - 9, 15 - 17 and 21 - 24; H1, H2.

USDA Hardiness Zones 2 - 7.

Exposure Full Sun to Partial Shade.

Moist Soil.

Clay, Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Seaside Tolerance is Good in Mild Zone.

Pests & Disease Information

Susceptible to Leaf Miner and Spider Mites, Oak Root Rot, Phytophthora and Root Rot.

Health, Safety & Environmental Concerns

Branch Strength Rated as Strong.

Root Damage Potential Rated as Moderate.

Allergy Health Hazard.

Fire Resistance is Unfavorable.

Desirable Wildlife Plant.

Special Uses & Values

Hedged.

Cite this tree:
SelecTree. "Thuja occidentalis Tree Record." 1995-2017. Sep 21, 2017.
< http://selectree.calpoly.edu/tree-detail/thuja-occidentalis >

SelecTree Nursery Connection Map
Cal Poly / ESRI