Conifer Database - porsildii

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.

    
Picea glauca var. porsildii

The Porsild Spruce, (Picea glauca var. porsildii), also called the Alaska white spruce, is a Picea glauca variety native to Alaska and the Yukon.

In areas of sympatry Picea glauca and P . engelmannii regularly hybridize and intergrade completely (R.Daubenmire 1974; E.H. Garman 1957; K.W. Horton 1959; L.Roche 1969; T.M.C. Taylor 1959). This has greatly complicated the taxonomy of P . glauca , a dominant tree of interior forests of Canada and Alaska.

Picea glauca var. porsildii was described as differing from the type variety by having smooth bark with resin blisters, short angular cone scales, an unusually broad crown, and pubescent twigs.




Picea glauca

RECOMMENDED HARDINESS ZONES


HORTICULTURAL STATUS:RHS Registered
COLOR:Blue Gree
GROWTH SHAPE:Broad Upright or Oval
GROWTH SIZE:Intermediate: 6 to 12 inches (15 – 30 cm) per year / 5 to 10 feet (1.5 – 3 m) after 10 years
ORIGIN:(unknown)


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