Eastern cottonwood is a large, fast-growing tree found growing along streams, rivers, and lowland areas. It is native to eastern North America through the Midwest and Chicago region. Due to its large size, weak wood, and penetrating roots, it is best used on large properties away from residential areas.
- Deciduous (seasonally loses leaves)
- Chicago area
- North America
- Zone 3
- Zone 4
- Zone 5
- Zone 6
- Zone 7
- Full sun (6 hrs direct light daily)
- Dry sites
- Occasional drought
- Wet sites
- Occasional flooding
- Alkaline soil
- Clay soil
- Road salt
- Moist, well-drained soil
- Wet soil
- Large tree (more than 40 feet)
- Mid spring
Size & Form
A large deciduous tree growing 50 to 80 feet high and wide in landscape situations. In the wild it can reach over 100 feet.
Young trees are pyramidal in habit changing to broadly vase-shaped with age.
Tree & Plant Care
Transplant easily, prefers wet soils in full sun, soil pH adaptable.
Salt and drought tolerant,
Extremely fast growing making it weak-wooded and brittle.
Produces suckers and agressive roots.
Disease, pests, and problems
Roots are shallow-roted and can invade septic and sewer systems.
The female trees can be messy, producing large quantities of seeds with white ‘fluff’ attached.
Disease, pest, and problem resistance
Susceptible to a wide range of diseases including dieback, cankers, leaf spots, rusts and powdery mildew.
Insect include borers, aphids, caterpillars and scale.
Native geographic location and habitat
Native to eastern North America through the Midwest and the Chicago Region, growing along streams, rivers, and lowland areas.
Bark color and texture
Mature trees produce an ash- gray, blocky, thick bark with deep furrows and ridges.
Leaf or needle arrangement, size, shape, and texture
Alternate leaf arrangement.
The 2 to 5 inch long, simple triangle-shaped deciduous leaves have a toothed margin, lobed with undulate leaf margin with a elongated tip. The leaf periole is 3 to 4 inches long and flatted.
Leaf buds are large, 1-inch long, reddish green and pointed.
Flower arrangement, shape, and size
Dioecious , male trees have dangling reddish catkins beofre leaves appear. Female flowers are yellow.
Fruit, cone, nut, and seed descriptions
Fruit is a dangling cluster of dehiscent capsules in May and June. Each capsule produce a fluff, cottony mass to aid in wind dispersal.