Populus x acuminata
Cottonwood, Lanceleaf
Populus x acuminata
Category: deciduous tree Size: large
Mature Size: 40 - 60' by 30 - 40'
Zone: To 3 Growth Rate: fast
Foliage: spear-shaped, drooping
Elevation (if known): 4,500' to 8,500'
Water: Water infrequently and deeply to promote deep root growth.
Soil :
Sun: Sun.
Comments: Yellow fall color. Male clone only. Works well in Alamosa, but note warnings. Nature hybrid between Plains and narrowleaf cottonwoods.
Warnings: Cottonwoods are notorious for suckering; some sources say this doesn't sucker. Female trees produce vast amounts of cottony seed; nurseries only sell males. It can suffer from borers and canker disease.
Alamosa Tree Board Recommended? yes
Street Tree? no Street Tree Conditions: Only if space permits and sidewalk not too near.
CO/NM native? yes Native to: Midwest US
Known Locations:
Information Sources: Rky Mtn Gardener's Guide; Little Valley Whole Sales Nursery; Alamosa Tree Board; CSU extension; USDA plants; Cheyenne Botanic Gardens