Aspen, Poplar

Lombardy Poplar (Populus nigra 'Afghanica')
Fast growing, tall columnar tree. An excellent screen for property lines or pastures. Not recommended for small areas. Yellow fall foliage.
(80' tall x 15' wide) Zone 4
Available 5 gal

Souixland Poplar (Populus deltoides 'Cottonless')
Fast growing shade tree. Great for producing shade in parks and large open areas. Not recommended for small yards. Invasive root system. Yellow fall color.
(75' tall x 35' wide) Zone 2
Available 5 gal, 10 gal, 15 gal, 20 gal

Quaking Aspen (Populus tremuloides)
Most wide spread tree in America. Fast growing and adapts to many different landscape conditions. Small round green leaves make a trembling sound when the wind blows.
Yellow fall color and white bark.
(30' tall x 15' wide) Zone 3
Available 1 gal, 5 gal, 7 gal, 10 gal, 15 gal, 25 gal, 5 gal clump, 25 gal clump.

Swedish Aspen (Populus tremula 'Erecta')
Fast growing columnar tree. Seedless. Makes the rustling sound of a Quaking Aspen. Great replacement for Lombardy Popular in the home landscape.
(40' tall x 10' wide) Zone 2
Available, 5 gal, 7 gal, 10 gal, 15 gal, 1-3/4", 2", 2-1/4"