Populus balsamifera

Common Names

Balsam Poplar, Balm of Gilead, Bam, Cottonwood, Eastern Balsam Poplar, Tacamahac, Bam Tree, Hackmatack, Heartleaf Balsam Poplar

Summary

Balsam Poplar is a fast-growing North American tree native to boreal and montane flood plains, typically upright and colonizing with suckering root systems. It favors moist bottomlands and flood plains, tolerates wet soils, and features fragrant resinous buds and leaves that are glossy dark-green above and pale below with white underside and rust-colored veins; catkins are pendulous and seeds wind-dispersed.

Cultivation requires full sun and evenly moist to wet soils with regular watering; hardy in zones 2–9; commonly used as a windbreak, for erosion control, and rapid shade. Wood is light and soft, used for pulp, lumber, and veneer; resin from buds disinfects beehives and buds have traditional medicinal uses; reproduction is via wind-dispersed seeds and extensive vegetative spread through root suckers and stump sprouts, enabling quick recolonization after disturbance.

Lifecycle

Perennial

Height

30-100 feet

Spread

25-40 feet

Hardiness Zones

Zones 1a-8b

Sunlight Requirements

Ideally full sun, tolerates partial shade.

Soil Type

Moist, well-drained loamy soil (slightly acidic to neutral), often in floodplain/alluvial settings.

Soil Drainage

Well-drained

Soil pH

6.9-8.2

Bloom Color

Red

Bloom Time

Spring (April–June; region-dependent; late spring)

Foliage Color

Dark green above; white-green beneath

Fall Foliage Color

Golden Yellow

Leaf Lifecycle

Deciduous

Growth Rate

Fast; among the fastest-growing trees in temperate latitudes

Seasons of Interest

Spring, Summer, Fall, Winter

Propagation Methods

Seeds; Cuttings (hardwood; softwood/greenwood; root cuttings; unrooted stem cuttings); Layering (buried stems/branches that root); Suckers (root suckers); Stump sprouts; Coppicing

Attracts Wildlife

Attracts bees, butterflies, and birds