Upright European Poplar (cottonwood)

Frequently asked questions

Is Upright European Poplar (cottonwood) good for the Colorado Front Range?

Yes, Upright European Poplar (cottonwood) is a well-suited tree for Colorado's Front Range, rated "Conditionally Recommended" on the 2024 Front Range Tree Recommendation List.

Why is Upright European Poplar (cottonwood) only conditionally recommended on the Front Range?

The main catches here: The average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.

How big does Upright European Poplar (cottonwood) get?

It matures to about 30–40 ft tall and 6–10 ft wide.

How much room does Upright European Poplar (cottonwood) need?

Give Upright European Poplar (cottonwood) about 10 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.

What shape does Upright European Poplar (cottonwood) grow into?

Upright European Poplar (cottonwood) typically grows into an upright-oval crown, taller than it is wide. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.

Is Upright European Poplar (cottonwood) hardy on the Front Range?

Upright European Poplar (cottonwood) is hardy in USDA 3–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range. That said, it carries a cold-hardiness caution: The average low suits it fine; our real cold risk is the swings, late frosts, and intense winter sun, so wrap young trunks and give it shelter.

How much water does Upright European Poplar (cottonwood) need?

It needs medium water once established.

How fast does Upright European Poplar (cottonwood) grow?

Upright European Poplar (cottonwood) is a fast-growing tree. Growth rate depends on water and site conditions on the Front Range.

How long does Upright European Poplar (cottonwood) live?

Upright European Poplar (cottonwood) is relatively short-lived for a tree, so plan to replace it sooner than a long-lived shade tree. Actual lifespan varies with site, water, and care.

What color does Upright European Poplar (cottonwood) turn in fall?

Upright European Poplar (cottonwood) turns gold and yellow in autumn. Fall color intensity varies with the season and site on the Front Range.

Is Upright European Poplar (cottonwood) native to Colorado?

No. It is not a Colorado native, but it grows well on the Front Range.

Is Upright European Poplar (cottonwood) deer-resistant?

Upright European Poplar (cottonwood) is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.

Is Upright European Poplar (cottonwood) prone to pests or disease on the Front Range?

Upright European Poplar (cottonwood) can be affected by cytospora canker and other issues common to this group on the Front Range. These are general tendencies, not a diagnosis, many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or CSU Extension.