SelecTree: Tree Detail

GIANT SEQUOIA
Sequoiadendron giganteum

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Photo Locations: Stanford, CA, Cal Poly State University - San Luis Obispo, CA, Tilden Regional Parks Botanic Garden - Berkeley, CA, UC Santa Cruz Arboretum - Santa Cruz, CA, Strybing Arboretum - San Francisco, CA, Sierra National Park, CA and Hoyt Arboretum - Portland, OR

General Notes

Largest living organism. Some are known to live over 3,000 years. Long-lived trees can reach 325 feet.

Has fragrant Leaf.

Native to California.

A Sequoiadendron giganteum in Sequoia National Park is registered as a California Big Tree. It measures 261 feet high, with a trunk circumference of 1024 inches and a crown spread of 106 feet.

Family: Cupressaceae
Previously listed in the Taxodiaceae family.

Additional Common Names

BIG TREE, GIANT SEQUOIA

Tree Characteristics

Erect and requires ample growing space.

Conical Shape.

Has Evergreen foliage.

Height: 60 - 100. May reach 260 feet.

Width: 30 - 50 feet.

Growth Rate: 36 Inches per Year.

Longevity Greater than 150 years.

Leaves Scalelike, Gray Green, No Change, Evergreen.

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

Brown or Red Cone, Large (1.50 - 3.00 inches), fruiting in Fall or Winter.

Bark Red Brown, Fissured.

Shading Capacity Rated as Dense in Leaf.

Litter Issue is Dry Fruit.

Tree Site Conditions & Constraints

Sunset Zones 1 - 9 and 14 - 23.

USDA Hardiness Zones 6 - 9.

Exposure Full Sun.

Moist to Dry Soil.

Clay, Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Seaside Tolerance is Medium in Mild Zone.

Pests & Disease Information

Susceptible to Carpenter Ant, Annosus Root Disease, Oak Root Rot and Phytophthora Root Rot.

Health, Safety & Environmental Concerns

Branch Strength Rated as Strong.

Root Damage Potential Rated as Moderate.

None Known Health Hazard.

Biogenic Emissions considered Moderate.

Attracts Birds and Squirrels.

Cite this tree:
SelecTree. "Sequoiadendron giganteum Tree Record." 1995-2017. Oct 20, 2017.
< http://selectree.calpoly.edu/tree-detail/sequoiadendron-giganteum >

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.