Blue Whale Trees
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Triangular, coarsely toothed eastern cottonwood leaves on long stalks against a clear blue sky
Eastern cottonwood leaves in Belmont Park, Montreal, Quebec, on July 29, 2015. The tree flowers before its leaves come out and sheds its seed from May into July. Photo: Laurent Bélanger, CC BY-SA 4.0 (source)

A native we do not grow

Eastern Cottonwood

Populus deltoides. Large tree, 50 to 100 feet, zones 2 to 9; full sun; dry, average or wet ground.

We do not grow eastern cottonwood, and it is not in our shop. This page gathers what our tools say about it and the natives we grow for the same ground.

At a glance

Other namesNecklace poplar, eastern poplar, southern cottonwood, common cottonwood
FormLarge tree
Height, feet50 to 100
Spread, feetUp to 75
Zones2 to 9
SunFull sun
Soil moistureDry, average or wet ground
GrowthFast
LeavesDeciduous
TraitsWildlife value, salt tolerant, erosion control
FlowersFebruary to May
FruitCapsules, May to August
First crop5 to 10 years
PollinationSeparate male and female trees. Male and female flowers grow on separate trees, so a female tree bears seed only with a male nearby.
LifespanLives up to 200 years, and the oldest dated one reached 116. Only a tiny share of trees has ever been ring-counted or cross-dated.
TransplantingThe Morton Arboretum's page on eastern cottonwood says: "Eastern cottonwoods transplant easily, prefer wet soils in full sun, and is adaptable to various soil pH."
Planting seasonSpring. Its sources speak of planting cuttings, and Silvics of the short planting season in the North.
Black walnutNot named on the Morton Arboretum's lists
GroundStream banks, floodplain forests, swamps and wet flats
Native in43 states and the District of Columbia

Eastern cottonwood is native in 43 states and the District of Columbia: Alabama, Arizona, Arkansas, Colorado, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin, Wyoming and the District of Columbia. The states are the USDA PLANTS Database's records, with the native range read from Silvics of North America and NatureServe Explorer.

For the same ground, we grow

These trees we grow share the most of eastern cottonwood's natural communities in the wild, by the companion species tool's rules.

See all companions
Tolerates wet soil, Drought tolerant

American Elm

Ulmus americana
Large tree Zones 2–9 60–80 ft

Shares stream banks, floodplain forests, swamps and wet flats in the wild.

Tolerates wet soil, Fall color

Pin Oak

Quercus palustris
Large tree Zones 4–8 50–70 ft

Shares stream banks, floodplain forests, swamps and wet flats in the wild.

Tolerates wet soil

Willow Oak

Quercus phellos
Large tree Zones 5–9 40–75 ft

Shares stream banks, floodplain forests, swamps and wet flats in the wild.

Tolerates wet soil, Rare

Swamp Cottonwood

Populus heterophylla
Large tree Zones 6–9 70–90 ft

Shares stream banks, floodplain forests, swamps and wet flats in the wild.

Tolerates wet soil

Balsam Poplar

Populus balsamifera
Large tree Zones 2–5 30–100 ft

Shares stream banks, floodplain forests, swamps and wet flats in the wild.

Tolerates wet soil, Honey tree

Swamp Tupelo

Nyssa biflora
Large tree Zones 6–9 60–80 ft

Shares stream banks, floodplain forests, swamps and wet flats in the wild.

Read from

Its figures come from Silvics of North America, NC State Extension, the Missouri Botanical Garden, the Morton Arboretum, the Wildflower Center, the Forest Service's Fire Effects Information System, the Woody Plant Seed Manual, Iowa State University Extension, the USDA PLANTS Database, the US Forest Service and the Eastern Native Tree Society.