About
Betula nigra 'Black Star' is a rapidly growing, deciduous tree that reaches approximately 15 meters in height. This tree exhibits a light and open form. It is notable for its distinctive bark, which starts as a papery, peeling mix of pinkish-orange and brown, maturing to reveal a broader spectrum of color over time. The glossy green leaves transition to yellow in the fall. In early spring, it produces yellow-brown male catkins.
About the genus
Betula comprises both deciduous trees and shrubs, known for their vibrant autumn foliage and distinctive bark that can be white, pink, or brown and peeling. In spring, male and female catkins emerge separately, preceding or coinciding with leaf growth.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, North-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Trees
- Habit
- Spreading branched
- Foliage
- Deciduous
- Height
- Higher than 12 metres
- Spread
- wider than 8 metres
- Time to full height
- 20-50 years
- Suggested uses
- Architectural, Coastal, Cottage and informal garden, Wildlife gardens
Care notes
- Cultivation
- Grow in moderately fertile, moist but well-drained soil in full sun or partial shade but tolerant of a range of soil conditions. See tree cultivation for further advice
- Pruning
- Pruning group 1
- Propagation
- Propagate by softwood cuttings or grafting
- Pest resistance
- May be susceptible to birch borers, leaf-mining sawflies and aphids
- Disease resistance
- May be susceptible to honey fungus, a tree rust and powdery mildews