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Plains Poplar

Populus deltoides subsp. monilifera

Compiled by · Reviewed against the 2024 Front Range Tree Recommendation List, CSU Extension & Plant Select® · Updated 2026-07-03

Plains Poplar (Populus deltoides subsp. monilifera) is a Colorado-native tree suited to the Colorado Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 50–70 ft tall and 40–60 ft wide, fast-growing, needs medium water, and prefers full sun. Too big for small yards; Choose male cultivar.

Site fitRecommended
Colorado nativemedium water50–70 ft tall and 40–60 ft wideDeer-resistant

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At a glance

Rating
Recommended
Botanical name
Populus deltoides subsp. monilifera
Variety / cultivar
Plains 'Jeronimus'
Type
Tree
Mature size
50–70 ft tall and 40–60 ft wide
Mature form
Spreading
Spacing / clearance
~60 ft of clearance
Hardiness zones
USDA 3–8
Growth rate
Fast
Lifespan
Short-lived
Fall color
Gold, yellow
Water needs
medium water
Sun
Best in full sun.
Colorado native
Yes
Foliage
Deciduous
Soil
clay, loam, sandy
Soil pH
6.0–8.2
Hail tolerance
moderate
Wind tolerance
low
Salt tolerance
moderate
Firewise (defensible space)
Zones 2–3 (keep it back from the house)
Pollinator value
low
Tolerates
Rain gardens

Wildlife & ecology

Pollinator value
low
Deer
Generally deer-resistant
Native ecoregion
riparian, shortgrass prairie

Common problems on the Front Range

These are general tendencies for this group of plants on the Front Range, 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 your local CSU Extension office.

Frequently asked questions

Is Plains Poplar good for the Colorado Front Range?
Yes, Plains Poplar is a well-suited tree for Colorado's Front Range, rated "Recommended" on the 2024 Front Range Tree Recommendation List.
How big does Plains Poplar get?
It matures to about 50–70 ft tall and 40–60 ft wide.
How much room does Plains Poplar need?
Give Plains Poplar about 60 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
What shape does Plains Poplar grow into?
Plains Poplar typically grows into a wide, spreading habit, broader than it is tall, give it room and keep it back from buildings. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.
Is Plains Poplar hardy on the Front Range?
Plains Poplar is hardy in USDA 3–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
How much water does Plains Poplar need?
It needs medium water once established.
How fast does Plains Poplar grow?
Plains Poplar is a fast-growing tree. Growth rate depends on water and site conditions on the Front Range.
How long does Plains Poplar live?
Plains 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 Plains Poplar turn in fall?
Plains Poplar turns gold and yellow in autumn. Fall color intensity varies with the season and site on the Front Range.
Is Plains Poplar native to Colorado?
Yes. It is a Colorado native.
Is Plains Poplar deer-resistant?
Plains Poplar is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.
Is Plains Poplar a good firewise plant near the house?
Plains Poplar is suitable in defensible-space zones 2–3, best kept back from the house rather than in the area right against the structure. This is general suitability guidance based on CSU Extension firewise plant lists, not a guarantee that any plant won't burn, a well-irrigated, well-maintained plant is the goal. Follow CSU Extension defensible-space guidance and check with your local fire district before planting in the wildland-urban interface.
Is Plains Poplar prone to pests or disease on the Front Range?
Plains 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.

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See also

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