Quaking Aspen (Clump or single)
Populus tremuloides
Zone 2
Ht 40’ x W 25’
Narrow, oval to pyramidal form. Native throughout much of the West in higher altitudes. The flat petiole creates trembing leaves against striking, silvery-gray bark. Bright yellow fall color.
Aspen Singles
Jeronimus Poplar
Populus sargentii ‘Jeronimus’
Zone 4
Ht 80’ x W 50’
This cottonless variety has become quite popular in Colorado and the western states. Valued for its tall, straight growth habit so atypical of the species. Fast growing with a broad, oval crown. Only moderate water needs.
Lanceleaf Poplar
Populus x acuminata
Zone 3
Ht 45’ x W 25’
This hardy Cottonwood has attractive 4” long leaves with a light green underside. Matures to a medium sized shade tree. It is native from New Mexico to Alberta, Canada.
Robusta Poplar
Populus x canadensis ‘Robusta’
Zone 3
Ht 60’ x W 40’
A cottonless cottonwood that is a seedless hybrid introduced by the University of Minnesota. Known to be a fast growing, smaller cultivar that does well in moderate to arid environments.