SelecTree: Tree Detail
Photo Locations: UC Davis Arboretum - Davis, CA, Tilden Regional Parks Botanical Garden - Berkeley, CA, Strybing Arboretum - San Francisco, CA, Santa Barbara Botanic Garden - Santa Barbara, CA and Quail Botanical Gardens - Encinitas, CA
Utility friendly tree.
Excessive watering may cause rapid top growth, resulting in wind-thrown trees.
Has fragrant Leaf.
Native to California.
A Hesperocyparis forbesii in Fresno is registered as a California Big Tree. It measures 70 feet high, with a trunk circumference of 206 inches and a crown spread of 48 feet.
Columnar or Oval Shape.
Has Evergreen foliage.
Height: 10 - 25 feet.
Width: 20 feet.
Growth Rate: 36 or More Inches per Year.
Longevity 50 to 150 years or more.
Leaves Scalelike, Medium Green, No Change, Evergreen.
Flowers Inconspicuous. . Has separate male and female flowers on the same tree (monoecious).
Brown, Gray or Mostly Green Cone, Medium (0.50 - 1.50 inches), fruiting in Fall Wildlife use it.
Bark Dark Brown or Red Brown, Exfoliating, Scaly or Smooth.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 8 - 14 and 18 - 20.
USDA Hardiness Zones 7 - 9.
Exposure Full Sun.
Moist to Dry Soil.
Clay, Loam or Sand Texture.
Highly Acidic to Highly Alkaline Soil pH.
Seaside Tolerance is Good in Moderate Zone.
Health, Safety & Environmental Concerns
Branch Strength Rated as Strong.
Root Damage Potential Rated as Moderate.
None Known Health Hazard.
Biogenic Emissions considered Moderate.
Desirable Wildlife Plant.
Wildlife use Fruit.
Special Uses & Values
Cite this tree:
SelecTree. "Hesperocyparis forbesii Tree Record." 1995-2020. Jun 5, 2020.
< https://selectree.calpoly.edu/tree-detail/hesperocyparis-forbesii >