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Populus fremontii (Western Cottonwood)

Fremont Cottonwood, Western Cottonwood, Gila Cottonwood, Alamo

Populus fremontii, Fremont Cottonwood, Western Cottonwood, Gila Cottonwood, Alamo, Deciduous Tree, Fall Color
Populus fremontii, Fremont Cottonwood, Western Cottonwood, Gila Cottonwood, Alamo, Deciduous Tree, Fall Color
Populus fremontii, Fremont Cottonwood, Western Cottonwood, Gila Cottonwood, Alamo, Deciduous Tree, Fall Color
Populus fremontii, Fremont Cottonwood, Western Cottonwood, Gila Cottonwood, Alamo, Deciduous Tree, Fall Color

Fast-growing, Populus fremontii (Western Cottonwood) is an upright-spreading deciduous tree with stout branches clad with heart-shaped, bright green leaves turning a lovely yellow in fall. On mature trees, the ash-gray bark is divided into thick, flattened ridges, separated by deep fissures. In early-mid spring, clusters of long drooping catkins appear on separate male and female trees. The female flowers give way to capsules that split open to release clouds of cottony seeds that can be a temporary nuisance. Roots can be invasive as Western Cottonwood develops an extensive root system that can buckle sidewalks and damage sewer lines. Important for birds and butterflies, A good shade tree or specimen to be grown on large properties away from residential areas or in rural areas along streams or ponds where other large trees may not flourish.

  • Grows up to 40-80 ft. tall (12-24 m) and 30-50 ft. wide (9-15 m). Adds 36 in. per year (90 cm).
  • A full sun lover, this plant is easily grown in loamy or sandy, medium to wet, well-drained soils.
  • Low maintenance, this beautiful tree may be subject to aphids, beetle borers, beetle leaves, caterpillars, anthracnose, canker, crown rot, mistletoe and sooty mold.
  • Propagate by fresh seeds, cuttings or layering.
  • Native to Southwestern United States.

Requirements

Hardiness 3 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21
Plant Type Trees
Plant Family Salicaceae
Genus Populus
Common names Alamo, Poplar, Fremont Cottonwood
Exposure Full Sun
Season of Interest Spring (Mid, Late)
Summer (Early, Mid, Late)
Fall
Height 40' - 80'
(12.2m - 24.4m)
Spread 30' - 50'
(9.1m - 15.2m)
Maintenance Low
Water Needs Low, Average
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy
Native Plants United States, Rocky Mountains, Southwest, California, Texas, New Mexico, Arizona, Nevada, Colorado, Utah
Attracts Birds, Butterflies
Garden Uses Rain Gardens
Garden Styles Informal and Cottage
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Alternative Plants to Consider

Populus deltoides (Eastern Cottonwood)
Populus alba (White Poplar)
Populus nigra ‘Italica’ (Lombardy Poplar)
Populus tremula (European Aspen)
Populus tremuloides (American Aspen)

Recommended Companion Plants

Anemopsis californica (Yerba Mansa)
Rosa californica (California Wild Rose)

Find In One of Our Guides or Gardens

Spectacular Trees for Vibrant Fall Colors: A Gardener’s Guide
Native Plant Alternatives to Populus alba (White Poplar)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21
Plant Type Trees
Plant Family Salicaceae
Genus Populus
Common names Alamo, Poplar, Fremont Cottonwood
Exposure Full Sun
Season of Interest Spring (Mid, Late)
Summer (Early, Mid, Late)
Fall
Height 40' - 80'
(12.2m - 24.4m)
Spread 30' - 50'
(9.1m - 15.2m)
Maintenance Low
Water Needs Low, Average
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy
Native Plants United States, Rocky Mountains, Southwest, California, Texas, New Mexico, Arizona, Nevada, Colorado, Utah
Attracts Birds, Butterflies
Garden Uses Rain Gardens
Garden Styles Informal and Cottage
How Many Plants
Do I Need?
Guides with
Populus (Poplar)
Not sure which Populus (Poplar) to pick?
Compare Now

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