Conifer Database - Royal Blue

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 pungens ‘Royal Blue’

Picea pungens 'Royal Blue' is a broad, symmetrically upright, robust selection of Colorado spruce with dense, uniform branching and intense, steel-Blue foliage which emerges silver in spring. The needles are highly ornamental and remain steel Blue throughout the winter. After 10 years of growth, a mature specimen will measure 10 feet (3 m) tall and 6 feet (2 m) wide, an annual growth rate of around 12 inches (30 cm).

This is a fairly obscure cultivar of unknown origin. It is though to have been first seen at Harvard University's Arnold Arboretum, Boston, Massachusetts in the late 1970s. To this day, it is virtually unknown except for specimens in a few large arboretums.




Picea pungens

Picea pungens

RECOMMENDED HARDINESS ZONES


HORTICULTURAL STATUS:Established / Published
COLOR:Blue
GROWTH SHAPE:
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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