Highland Poplar

Frequently asked questions

Is Highland Poplar good for the Colorado Front Range?

Yes, Highland Poplar is a well-suited tree for Colorado's Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List.

How big does Highland Poplar get?

It matures to about 50–70 ft tall and 30–50 ft wide.

How much room does Highland Poplar need?

Give Highland Poplar about 50 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.

What shape does Highland Poplar grow into?

Highland Poplar 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 Highland Poplar hardy on the Front Range?

Highland Poplar 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 Highland Poplar need?

It needs medium water once established.

How fast does Highland Poplar grow?

Highland Poplar is a fast-growing tree. Growth rate depends on water and site conditions on the Front Range.

How long does Highland Poplar live?

Highland Poplar 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 Highland Poplar turn in fall?

Highland Poplar turns gold and yellow in autumn. Fall color intensity varies with the season and site on the Front Range.

Is Highland Poplar native to Colorado?

Yes. It is a Colorado native.

Is Highland Poplar deer-resistant?

Highland Poplar is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.

Is Highland Poplar prone to pests or disease on the Front Range?

Highland Poplar 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.