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Sierra Redwood

Sequoiadendron giganteum

Cupressaceae · coniferous tree · introduced

Last updated

Data Coverage 3 of 6 dimensions
Site Data
Threats
Cultivars
Phenology
GDD Thresholds
Puget Sound

Giant sequoia, also called big tree or wellingtonia, is the largest tree on Earth by volume, native to the western Sierra Nevada of California. These massive evergreen conifers reach 250+ feet tall with massive, unbranched trunks and fibrous, reddish bark up to 2 feet thick. The foliage is blue-green and scale-like.

Giant sequoia naturally grows in deep, well-drained soil in groves where fire historically promoted regeneration. The trees are extremely long-lived (over 3000 years) and grow moderately fast once established. Outside their native Sierra Nevada habitat, they require cool climate with adequate moisture and are rarely grown except in botanical collections.

Quick Facts

Height
100 ft
Spread
65 ft
Growth Rate
Slow
Light
Full Sun
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 6a–8b
Bloom Time
Non-flowering
Origin
California Sierra Nevada Mountains above 4,500 ft

Phenological Calendar

Stage Typical Window
New growth flush BBCH 11 Feb 15-Mar 15
Bloom start BBCH 61 Apr 1-Apr 30
Bloom end / petal fall BBCH 69 Apr 15-May 15
Fruit/seed development BBCH 71 Sep 1-Nov 30
Fruit/seed maturity BBCH 85 Jun 1-Aug 31

Cultivars (4)

'Albospica'
Common name: Albospica Giant Redwood Albospica Serria Redwood
Hardy to USDA Zone 6
'French Beauty'
Common name: French Beauty Giant RedwoodFrench Beauty Serria Redwood
Hardy to USDA Zone 6
'Pendulum'
Common name: Weeping Sierra Redwood Weeping Giant Redwood; Mature height: 3 ft
Hardy to USDA Zone 6
'Von Martin'
Common name: Von Martin Sierra RedwoodVon Martin Giant Sequoia; Mature height: 10 ft
Hardy to USDA Zone 6