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Pseudotsuga menziesii |
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Douglas Fir |
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First
described by the plant explorer,
Dr. Archibald Menzies, this genus was named
after another plant explorer,
David Douglas. The name means false hemlock
in Latin. |
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Open, pyramidal with straight, stiff branches,
the lower drooping, the upper ascending. |
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40-80 feet tall with a spread of 12-20 feet
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Plants are
monoecious. Staminate cones are axillary, pendulous, the pistillate are
terminal. |
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Needles are 1-1˝ inches long, straight,
thin, lustrous dark bluish-green in color, with
2 white stomata lines beneath and a camphor
odor when crushed. |
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Cones are pendulous, 4 inches long, light brown
in color, with prominent 3 lobed bracts
extending beyond the scales. |
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- 'Compacta Viridis' - Zone 4 - With
compact, conical growth.
- 'Fastigiata' - Zone 6 - fastigiate
habit.
- var. glauca - Zone 4 - Rocky
Mountain form - slower in growth - denser and has
bluish-green needles.
- 'Glauca Pendula' - Zone 4 - pendulous-branched hardier form.
- 'Pendula' - Zone 6 - pendulous-branched
form of the Pacific Coast type.
- 'Viridis' - Zone 6 - Pacific Coast type
not as hardy as those native to the Rocky
Mountains.
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