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Poplar (cottonwood) — Quaking Aspen

Populus tremuloides

Poplar (cottonwood) — Quaking Aspen (Populus tremuloides) is a Colorado-native tree suited to the Colorado Front Range, rated "Trees With Potential" on the 2024 Front Range Tree Recommendation List. It matures to about 20–50 ft tall and 10–30 ft wide, and needs medium water. Aspen struggles below ~7,500 ft on the plains — heat stress, sunscald, Cytospora canker, and borers (oystershell scale, poplar borer) cause decline. It's a montane native; performs poorly as a single landscape specimen at lower elevations.

Colorado nativemedium water20–50 ft tall and 10–30 ft wideDeer-resistant

Photos

At a glance

Rating
Trees With Potential
Botanical name
Populus tremuloides
Variety / cultivar
Quaking Aspen
Type
Tree
Mature size
20–50 ft tall and 10–30 ft wide
Water needs
medium water
Colorado native
Yes
Foliage
Deciduous
Soil
clay, loam, sandy
Soil pH
6.0–8.2
Hail tolerance
low
Wind tolerance
low
Salt tolerance
moderate
Good for
slope

Site factors to consider

Frequently asked questions

Is Poplar (cottonwood) — Quaking Aspen good for the Colorado Front Range?
Yes. Poplar (cottonwood) — Quaking Aspen is included in the Front Range Plant Finder as a tree suited to Colorado's Front Range, rated "Trees With Potential" on the 2024 Front Range Tree Recommendation List.
How big does Poplar (cottonwood) — Quaking Aspen get?
It matures to about 20–50 ft tall and 10–30 ft wide.
How much water does Poplar (cottonwood) — Quaking Aspen need?
It needs medium water once established.
Is Poplar (cottonwood) — Quaking Aspen native to Colorado?
Yes — it is a Colorado native.

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See also

Related trees