Botanical Name: Picea pungens 'Glauca'
Common Name: Colorado Blue Spruce Type of Plant: conifer: tree Character evergreen Habit of Growth: Overall Shape very erect, single-trunked tree, with dense, spreading, stiff branches forming a symmetrical pyramidal canopy; develops a classical "Christmas" tree appearance Height 25'-50'(100') Spread 1/3-1/2 Growth Rate slow Environment: Exposure outdoors full or partial sun Soil acidic, well-draining soils; avoid dry alkaline locations Hardiness hardy (zones 1-9, 14-21); thrives in cool humid habitats Morphology: Leaves needles; very stiff, somewhat curved, spiny-tipped; quadrangular in cross section; 3/4"-1 1/4" long; whorled, dark green Flowers inconspicuous, in catkins; summer Fruit the female cone: oval, 2 1/2"-4" long, thin scales Propagation: seed Usage: very distinctive accent tree; suitable for use as a lawn tree; excellent for temperate-climate, woodsy landscapes; not as large in So. Calif. as in its native habitats Landscape Care: Watering regular preferred (with good drainage); plant may get salt burn in wet adobe soils Fertilizing little required - check for chlorosis in heavy clay soil Pruning none, except to selectively head back errant branches Pests/Diseases relatively free Special Conditions/Other Origin: Rocky Mountains Family: Pinaceae Notes: |
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