Black Cottonwood

Populustrichocarpa

Family
Salicaceae (sal-i-KAY-see-ee)
Genus
Populus (POP-yoo-lus)
Species
trichocarpa (try-ko-KAR-puh)
Synonym
Populus balsamifera subsp. trichocarpa
Populus balsamifera subsp. californica
Populus hastata
Populus balsamifera subsp. hastata
Populus balsamifera var. cupulata
Sun Exposure
Full Sun
Foliage
Deciduous
Textured
Height
over 40 ft. (12 m)
Spacing
over 40 ft. (12 m)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Bloom Color
Red
Chartreuse (yellow-green)
Bloom Time
Mid Spring
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
From hardwood cuttings
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Paradise, California

Fort Morgan, Colorado

Fountain, Florida

Twisp, Washington

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Gardener's Notes:

0
positive
2
neutrals
1
negative
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Q
Weldona, CO | January 2022 | neutral

The Black Cottonwood was one many types of the trees planted along the South Platte River in Colorado as part of a bank stabilization eff...Read More

G
G
Beautiful, BC (Zone 8b) | March 2007 | negative

This tree is a weedy, self-seeding tree that, if growing in a residential area can split a house foundation. Roots travel for 30-40' or m...Read More

T
T
Murfreesboro, TN (Zone 7a) | August 2003 | neutral

The largest hardwood tree in North America, a mature specimen of Populus trichocarpa can reach 180 feet in height.

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