Alnusglutinosa
common alder
A deciduous tree to 25m, broadly conical in habit when young, with grey-purple buds and young catkins conspicuous in winter, and rounded bright green leaves
Size
Ultimate height
Higher than 12 metresTime to ultimate height
20–50 yearsUltimate spread
4–8 metresGrowing conditions
Moisture
Moist but well–drained,Poorly–drainedpH
Acid,Alkaline,NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Brown | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | Brown | ||
| Winter |
Position
- Full sun
Aspect
East–facing orSouth–facing orNorth–facing orWest–facing
Exposure
Exposed orSheltered Hardiness
H7Botanical details
- Family
- Betulaceae
- Native to GB / Ireland
- Yes
- Foliage
- Deciduous
- Habit
- Columnar upright
- Genus
Alnus are vigorous deciduous trees and large shrubs with rounded leaves and often conspicuous catkins in winter
- Name status
Correct
- Plant range
- Europe to N Africa
How to grow
Cultivation
This genus is noted for its ability to thrive in poor, wet conditions and is widely used in land reclamation
Propagation
Propagate by seed orhardwood cuttings
Suggested planting locations and garden types
- Coastal
- Wildflower meadow
- Wildlife gardens
- Low Maintenance
- Hedging and screens
Pruning
Pests
May be susceptible toalder sucker and leaf-mining sawflies
Diseases
May be susceptible toPhytophthora andhoney fungus
Get involved
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