SelecTree: Tree Detail

WESTERN RED CEDAR
Thuja plicata

Thuja plicata Thuja plicata Thuja plicata Thuja plicata Thuja plicata Thuja plicata Thuja plicata Thuja plicata Thuja plicata Thuja plicata

Photo Locations: Washington Park Arboretum - Seattle, WA, Cal Poly State University - San Luis Obispo, CA, Tilden Regional Parks Botanic Garden - Berkeley, CA, Rancho Santa Ana Botanic Garden - Claremont, CA, Hoyt Arboretum - Portland, OR and Arnold Arboretum - Boston, MA

General Notes

Has fragrant Bark and Leaf.

Native to Northern Coastal California.

Family: Cupressaceae

Tree Characteristics

Erect and requires ample growing space.

Conical Shape.

Has Evergreen foliage.

Height: 50 - 70 feet.

Width: 15 - 25 feet.

Growth Rate: 24 to 36 Inches per Year.

Longevity Greater than 150 years.

Leaves Scalelike, Dark Green, No Change, Evergreen.

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

Brown Cone, Small (0.25 - 0.50 inches), fruiting in Summer or Fall.

Bark Light Gray or Red Brown, Exfoliating, Fibrous or Striated.

Shading Capacity Rated as Dense in Leaf.

Litter Issue is Dry Fruit.

Tree Site Conditions & Constraints

Sunset Zones 1 - 9 and 14 - 24.

USDA Hardiness Zones 6 - 8.

Exposure Full Sun to Partial Shade.

Moist Soil.

Clay, Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Salinity Tolerance is Moderate on Coast.

Seaside Tolerance is Good in Mild Zone.

Pests & Disease Information

Susceptible to Beetle Borers, Leaf Miner and Spider Mites, Armillaria and Root Rot.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium.

Root Damage Potential Rated as Moderate.

None Known Health Hazard.

Biogenic Emissions considered Low.

Fire Resistance is Unfavorable.

Desirable Wildlife Plant.

Deer Palatable.

Cite this tree:
SelecTree. "Thuja plicata Tree Record." 1995-2019. Sep 17, 2019.
< https://selectree.calpoly.edu/tree-detail/thuja-plicata >

This tree is not part of the SelecTree Nursery Connection. If you would like to see this tree listed, or know of a nursery that sells it, please contact us at ufei@calpoly.edu.