tree · design plant record

Betula nigra

River birch

A substantial canopy tree with peeling bark for a generous moisture-retentive site.

Height at maturity
9.14–21.34 m (30–70 ft)
Spread at maturity
12.19–18.29 m (40–60 ft)
Light
Sun / Part shade
Moisture
Drier soil after establishment / Moist, draining soil / Wet-soil tolerance (check details)
Source-reported USDA zones
4–9 · verify subzone and cultivar
Principal seasonal role
Summer, Autumn, Winter

Fit it to the site

Moist soil; check pH and allow a large root and canopy area.

Not a small patio tree: the source reports a canopy up to about 18 m across.

Keep the care in the decision

Keep roots mulched and avoid repeated drying during establishment.

Origin & safety checks

Central & Eastern U.S.A. Confirm local native range and restrictions.

Pet safety and edible uses are not assessed; verify the exact botanical name with a suitable local authority.

Check current invasive restrictions with your local plant-health or extension authority. For pets, use the exact botanical name in a veterinary toxicity reference; for potential ingestion or exposure, get appropriate professional advice rather than relying on a design guide.

Factual source · checked 15 October 2026

NC State Extension Gardener Plant Toolbox: Betula nigra

Ranges are rounded metric conversions of the source's dimensions. Growth varies with cultivar and conditions. Reference photographs and source captions help you inspect the plant; they do not certify identity. Our concept garden images cannot establish botanical identity.