Common name: Common Alder.
Native: Western Asia, Europe, North Africa.
Size and spread (10 years): 9m x 5m
Treatment required: Requires pre chill.
Germinal seeds / kg: 380,000
Ideal sowing period: Spring
Soil conditions: Particularly suited to wet sites and will tolerate soils overlying chalk.
Planting instructions: Root nodules fix nitrogen from the air making Alder a good colonising tree for reclaiming poor soils e.g industrial waste lands.
Mature height: 25m