About
Alnus incana 'Aurea' is a sizable, conical deciduous tree characterized by its yellow-green foliage. In spring, it produces prominent male catkins that can reach lengths of up to 10 cm. The smaller female catkins develop into small, cone-shaped fruits that mature to a dark brown hue in autumn and remain on the tree throughout the winter months.
About the genus
Alnus comprises robust deciduous trees and sizable shrubs characterized by their rounded foliage and, during winter, noticeable catkins.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Poorly-drained, Well-drained
- Aspect
- South-facing, North-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Trees
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 8-12 metres
- Spread
- 4-8 metres
- Time to full height
- 20-50 years
Care notes
- Cultivation
- Able to thrive in poor, wet conditions but also tolerates dry soils
- Pruning
- Pruning group 1
- Propagation
- Propagate by hardwood cuttings
- Pest resistance
- May be susceptible to alder leaf beetle, alder sucker and leaf-mining sawflies
- Disease resistance
- May be susceptible to phytophthora root rot and honey fungus