River Birch (Betula nigra) Description:River Birch (Betula nigra) is a fast-growing, native deciduous tree prized for its striking, exfoliating bark in shades of salmon-pink, cinnamon, and reddish-brown, which peels away to reveal lighter inner bark. This unique bark provides year-round visual interest, especially in winter. The tree’s lush, leathery green leaves create a dense canopy for excellent summer shade and turn buttery yellow in fall. River Birch is highly adaptable, thriving in wet or poorly drained soils but also tolerating drier sites once established. It is resistant to bronze birch borer and generally low maintenance, making it ideal for specimen planting, rain gardens, naturalized areas, and erosion control along streams or ponds. Plant Characteristics: Botanical Name: Betula nigra Common Name: River Birch Type: Deciduous shade tree Mature Height: 40–70 feet Mature Spread: 30–60 feet Growth Habit: Upright, pyramidal when young; rounded crown with age Foliage: Ovate, serrated, dark green leaves; buttery yellow in fall Bark: Exfoliating in salmon-pink, cinnamon, and brown tones Light Requirements: Full sun to part shade Soil: Prefers moist, acidic, well-drained soil; tolerates clay, sand, and wet soils Water Needs: Moderate to high; thrives in wet conditions but drought tolerant once established Hardiness Zones: USDA 4–9 Maintenance: Low; prune in late winter to remove damaged or crossing branches Resistances: Resistant to bronze birch borer, tolerant of wet soils, generally pest and disease resistant Wildlife: Attracts birds, pollinators, and supports beneficial insects Uses: Shade tree, specimen, rain garden, erosion control, naturalized areas, wetland restoration Care Tips: Water regularly during establishment; mulch to conserve moisture and keep roots cool. Prune in late winter or after leaf drop to maintain shape and remove dead wood. Test soil pH every few years; add a soil acidifier if needed to maintain acidity. Avoid planting near pavement or structures, as roots can spread widely.
