Conifer Database - Glaucum

Conifer Trees Database

Welcome to the American Conifer Society Database

Established in 1983, our mission is centered on advocating for the integration of conifer trees in garden designs and landscapes. We are dedicated to educating enthusiasts and the general public about the proper care, cultivation, and conservation of these majestic and diverse evergreens.

    
Sequoiadendron giganteum ‘Glaucum’

Sequoiadendron giganteum 'Glaucum' is a narrowly pyramidal selection of Giant sequoia with more-or-less fastigiate branches and striking blue-green foliage, particularly with the first flush of new spring growth. It is purported to be cold hardier than many other giant sequoia cultivars. After 10 years, a specimen will measure 16 feet (5 m) tall and 4.5 feet (1.5 m) wide, an annual growth rate of 1.5 to 2 feet (45 - 60 cm).

The blue giant sequoia is a very old cultivar in the nursery trade, first described 1860 by Christoph Friedrich Otto (1783-1856), in Hamburger Garten- und Blumenzeitung. It is noteworthy that this edition was actually published 4 years after Otto's death. In his description, Otto listed it under the name, Sequoia gigantea var. glauca, which suggests that more than one clone may be implicated as this cultivar's genetic source. Further, it is highly unlikely that the tree described in 1860 is the tree that is common in cultivation today.




Sequoiadendron giganteum

Sequoiadendron giganteum

Sequoiadendron giganteum

Sequoiadendron giganteum

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HORTICULTURAL STATUS:Established / Published
COLOR:Blue
GROWTH SHAPE:Conical (Pyramidal)
GROWTH SIZE:Large: greater than 12 inches (30 cm) per year / greater than 12 feet (4 m) after 10 years
ORIGIN:Unknown


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