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bigtooth aspen

Populus grandidentata · Salicaceae

bigtooth aspen (Populus grandidentata)
Photo: (c) Bonnie Semmling, some rights reserved (CC BY) · CC BY · via iNaturalist

bigtooth aspen (Populus grandidentata) is a perennial tree in the Salicaceae family. It is native to North America. USDA records it as hardy in zone 2 and warmer, down to about -43°F.

At a glance

Typetree USDA
Lifecycleperennial USDA
Native statusnative USDA
Mature height65 ft USDA
Lightfull-sun USDA
Water needhigh USDA
Growth raterapid USDA
Soil pH4.8–7.2 USDA
BloomApril–May USDA
Flower colorYellow USDA
Hardiness zones2 and warmer USDA
Guild layercanopy Derived
Nursery availabilityRoutinely Available USDA

USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.

Growing conditions

It needs full sun. USDA rates it as having needs consistently moist ground. Its drought tolerance is rated low. It is recorded on soils from pH 4.8 to 7.2 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 2.

Size and growth

At maturity it reaches about 65 ft, making it a large tree that will dominate its site. It grows quickly.

Bloom period

USDA records a bloom period of April through May. Flowers are yellow.

A flowering date, not a pollinator rating.

Foliage, flower and season

Summer foliage is green, medium in texture. Its flowers are not conspicuous — a plant for form and foliage. Its active growth period is spring and summer. USDA rates its lifespan as short, so plan on replacing or resowing it rather than treating it as permanent structure.

What the site needs to provide

USDA records it across sites receiving 20 to 70 inches of annual precipitation. It needs at least 90 frost-free days to finish its season. It roots to at least 20 inches. Fertility requirement: medium.

Propagating it

Propagate it from seed, bare root and container stock. USDA records no cold-stratification requirement, so seed should germinate without a chilling period. Its seed spreads at a moderate rate. It spreads vegetatively at a slow rate.

Resilience and wildlife

Browsing animals find it moderately palatable, so expect deer and rabbits to take an interest. Its fire tolerance is rated high, and it can resprout after damage. Its growth form is recorded as single stem.

Role in a guild

Canopy. In a layered planting this is the tallest layer of a planting — it sets the light budget everything beneath it lives on. The layer is derived by a fixed rule from growth habit and mature height.

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Tags

deciduoussalt-tolerantsandy-soilnativefull-sunfast-growingcanopy

Related plants

Others in Populus

Similar role and hardiness

Where this data comes from

Every value on this page comes from the USDA PLANTS database record for symbol POGR4, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.

Read our full data sources and methodology.

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