Common Alder Tree

Common Alder Tree

Common Alder Tree Facts

Specific Name:   Alnus glutinosa
Hardiness Zones:   3 to 7
Growth_Rate:   Rapid
Site Requirements:   Sun to partial shade; range of soil types including wet, dry and infertile soil
Texture:   Medium
Form:   Pyramidal in youth; rounded crown with age; often multistemmed
Height:   40 to 60'
Weight:   20 to 40
Leaf:   2 to 4.5" alternate rounded, shiney green leaves; nonshowy fall color
Flower/Fruit:   2 to 4" yellow brown to red brown catkins (male flowers); female flowers on short purplish brown strobili which persist until winter
Comments:    Has naturalized along streams; tough adoptable plant; few pest problems; tolerates short term flooding; flower and fruiting best in full sun; easy to transplant; dislikes summer heat
Habit:   Deciduous
Cultivars:   Imperalis