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 Pseudotsuga menziesii

Common Name:
Douglasfir

Growth Rate:
medium 1-2' per year

Average Mature Height:
40-80' (over 200' in native habitat)

Average Mature Width:
12-20'

Flower Details:
monoecious on 2nd year wood; staminate axillary, pendulous; pistillate terminal, exerted 3 point bracts

Fruit Details:
pendulous oval-ovoid 3-4" long cones; 3 prong bracts; brown

Fall Color:
evergreen

Bark Details:
smooth young; old trunks thick reddish-brown ridges

Disease / Insect Problems or Resistance:
cankers, leaf casts, leaf and twig blight, witches' brooms, aphids, Douglasfir bark beetle, spruce budworm, moths

Native Habitat:
Rocky Mountains & Pacific coast

Other Features:
Makes a nice short needle Christmas tree. National champion is 329' x 60' in OR

Culture and Care:
transplants well; neutral to slightly acid, well drained, moist soil

This plant was blooming:
4/22/2005 - 5/6/2005

Plantings of this cultivar at Boone County Arboretum:
290, 300, 1272, 6900

    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