Boone County Arboretum
9190 Camp Ernst Road
Union, Kentucky 41091
Phone: (859) 384-4999
Fax: (859) 384-6888
arboretum@boonecountyky.org

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Cultural Details for Picea pungens var. glauca 'Pendula'

Common Name:
Weeping Colorado Blue Spruce

Growth Rate:
Slow to moderate growth rate 30-50' after 35-50 years.

Average Mature Height:
30-60' in landscape, 90-135' in wild

Average Mature Width:
10-20' in landscape, 20-30' in wild

Flower Details:
Monoecious, staminate orange, pistillate greenish or purple.

Fruit Details:
Cylindrical but slightly narrowed at each end, 2-4" long, 1-1.25" wide, green with violet bloom, pale shining brown when mature, scales wavy, oval, blunt and jaggedly toothed at apex, short stalk.

Fall Color:
With training, this selection forms an upright tree with cascading growth. It can also be allowed to grow prostrate as a groundcover.

Bark Details:

Disease / Insect Problems or Resistance:
Subject to spruce gall aphid, Adelges cooleyi, which causes tips of branches to die, spruce budworm and spider mite, Cytospora canker may infect lower branches, Phomopsis occulta caused branch dieback in Michigan nurseries.

Native Habitat:
Spedcies native to Southwestern United States; Rocky Mountains from Colorado to Utah to New Mexico and Wyoming. Introduced about 1862.

Other Features:
Silvery-blue needles. Can be trained to form an upright tree with cascading growth. Will also grow as a groundcover, with branches that spread over the ground, making a rather attractive, but somewhat gaudy, rock garden type plant.

Culture and Care:
Prefers rich, moist soil in full sunlight although is more drought tolerant than other Picea; very adaptable Seed requires no pretreatment, though most of the cultivars are grafted onto seedling understocks.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:
5545

    The information on this page may have come from one or more of the following sources:
  • Dirr, Michael. Manual of Woody Landscape Plants. Stipes Publishing. 1998.
  • Hightshoe, Gary L. Native Trees, Shrubs, and Vines for Urban and Rural America. John Wiley & Sons. 1988.
  • North Carolina Extension Plant Fact Sheets. www.ces.ncsu.edu
  • University of Connecticut Plant Database. www.hort.uconn.edu