About
Betula costata ambig. is a tall deciduous tree that can reach approximately 30 meters in height. It features a straight trunk with a smooth surface, displaying a pale orange-brown or creamy-pink bark in its youth, which matures to a coarse greyish-brown. The tree produces slender, pointed dark green leaves on downy shoots that appear early in the growing season, alongside elongated 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
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- East-facing, North-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
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, Cottage and informal garden, Wildlife gardens
Care notes
- Cultivation
- Grow in moist but well-drained soil in full sun or light, dappled shade. Sensitive to drought and early frosts as the leaves emerge. 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