Photo by Melody

PlantFiles: Narrow-leaf Cottonwood
Populus angustifolia

Family: Salicaceae (sal-i-KAY-see-ee) (Info)
Genus: Populus (POP-yoo-lus) (Info)
Species: angustifolia (an-gus-tee-FOH-lee-uh) (Info)

Synonym:Populus balsamifera var. angustifolia
Synonym:Populus canadensis var. angustifolia
Synonym:Populus fortissima
Synonym:Populus salicifolia
Synonym:Populus x sennii

One vendor has this plant for sale.


over 40 ft. (12 m)

30-40 ft. (9-12 m)
over 40 ft. (12 m)

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)

Sun Exposure:
Unknown - Tell us

Unknown - Tell us

Bloom Color:
Unknown - Tell us

Bloom Time:
Unknown - Tell us

Grown for foliage
Good Fall Color

Other details:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Provides winter interest

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By lkz5ia
Thumbnail #1 of Populus angustifolia by lkz5ia

By tidy
Thumbnail #2 of Populus angustifolia by tidy


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive tidy On Aug 20, 2009, tidy from Lakewood, CO (Zone 5a) wrote:

These trees can be very heavy in cotton in the spring, but rain and cold slow down production to a livable level. The narrow leaf makes fall cleanup as easy as possible, considering the immense size of the trees. They do "self-prune", resulting in downed twigs in any wind and huge branches in heavy wind! This results in lots of mulch if you have and use a chipper or lots of trash! They attract "flickers" who drill holes which turn into squirrel and bee homes. Due to the tremendous size, trimming of major break removal is quite expensive. Breakage as shown in the picture happens infrequently, but the branch was 20" in diameter and about 25' from the ground and that long past the break! Root invasion is hard to measure, but since 1965, we have had no known root related damage. Originally, the trees were watered by irrigation ditches, but seem perfectly happy now with ordinary suburban watering patterns. The shade is wonderful.


This plant has been said to grow in the following regions:

Anthem, Arizona
Flagstaff, Arizona
Denver, Colorado
Parker, Colorado
Denison, Iowa

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