Betula nigra (River Birch)
River Birch, Black Birch
Betula nigra (River Birch) is a bushy deciduous tree prized for its incredible peeling bark. Salmon-pink, smooth and shiny at first, the bark flakes and curls in cinnamon-brown to blackish sheets. Vigorous and fast-growing, this birch has a large, pyramidal, upright habit and bears diamond-shaped, glossy green leaves with silvery undersides, which turn yellow in fall. In spring, tiny yellowish-brown male flowers appear in drooping catkins while greenish female flowers appear in upright catkins. The female flowers give way to drooping cone-like fruits containing numerous small winged seeds.
River birch can be grown as either a single trunk or multi-stemmed tree. Perfect for wet soils, this birch can tolerate locations with drier soils and is perhaps the most culturally adaptable and heat tolerant of the birches.
- Grows up to 40-70 ft. tall (12-21 m) and 40-60 ft. tall (12-18 m).
- A full sun or part shade lover, this plant is easily grown in average, wet soils. Adaptable and heat tolerant, this river birch will grow in a wide range of situations, including semi-aquatic conditions, but performs best in moist, slightly acidic soils. Consider using soaker hoses and bark mulches to keep the root zones cool and moist.
- Perfect as a specimen plant or in borders, along ponds and streams, cottage gardens, and foundation plantings.
- Low maintenance, this plant needs little pruning. If pruning is necessary, prune during the dormant season and avoid pruning in spring when the sap is running.
- May be affected by sawflies, aphids, rust, and leaf spot.
- Propagate by softwood cuttings or grafting
- Native to central and eastern United States.
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Requirements
Hardiness | 4
– 9 |
---|---|
Heat Zones | 1
– 9 |
Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
Plant Type | Trees |
Plant Family | Betula - Birches |
Exposure | Full Sun, Partial Sun |
Season of Interest |
Spring (Early,Mid,Late) Summer (Early,Mid,Late) Fall Winter |
Height | 40' – 70' (12m – 21m) |
Spread | 40' – 60' (12m – 18m) |
Water Needs | Average, High |
Maintenance | Low |
Soil Type | Chalk, Clay, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Moisture Retentive, Poorly Drained, Well-Drained |
Characteristics | Showy |
Native Plants | United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma, Texas |
Tolerance | Clay Soil, Deer, Drought, Wet Soil |
Garden Uses | Beds and Borders, Ponds and Streams, Rain Gardens |
Garden Styles | Informal and Cottage, Traditional Garden |
ginntinn / 123RF Stock Photo
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Requirements
Hardiness | 4
– 9 |
---|---|
Heat Zones | 1
– 9 |
Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
Plant Type | Trees |
Plant Family | Betula - Birches |
Exposure | Full Sun, Partial Sun |
Season of Interest |
Spring (Early,Mid,Late) Summer (Early,Mid,Late) Fall Winter |
Height | 40' – 70' (12m – 21m) |
Spread | 40' – 60' (12m – 18m) |
Water Needs | Average, High |
Maintenance | Low |
Soil Type | Chalk, Clay, Loam, Sand |
Soil pH | Acid, Alkaline, Neutral |
Soil Drainage | Moist but Well-Drained, Moisture Retentive, Poorly Drained, Well-Drained |
Characteristics | Showy |
Native Plants | United States, Midwest, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Ohio, Wisconsin, Northeast, Connecticut, Delaware, Massachusetts, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia, Southwest, Oklahoma, Texas |
Tolerance | Clay Soil, Deer, Drought, Wet Soil |
Garden Uses | Beds and Borders, Ponds and Streams, Rain Gardens |
Garden Styles | Informal and Cottage, Traditional Garden |