Botanical Name: Alnus glutinosa
Common Name: Black alder
Type of Plant: dicot: tree
Character deciduous
 
Habit of Growth:
Overall Shape upright, oval to rounded tree - often multi-trunked, with branch from ground up
Height to 70'
Spread 40'-60'
Growth Rate moderate
 
Environment:
Exposure outdoors full sun
Soil any soil
Hardiness hardy (zones 1-10, 14-24): performs well outside desert
 
Morphology:
Leaves alternate, oval, 2"-4" long, coarsely serrate, not as deeply veined as A. rhombifolia, dark gray-green, somewhat lustrous
Flowers early spring, catkins (male drooping, female upright and conelike)
Fruit woody cone
 
Propagation:
seed
 
Usage:
screen, quick effects, shade tree, multi-trunked accent tree, also good in lawns, groves and temperate climate landscapes
 
Landscape Care:
Watering prefers deep watering - tolerates lawn watering
Fertilizing none
Pruning shape as desired - can be left alone
Pests/Diseases aphids, sooty mold
Special Conditions/Other
 
Origin: Southern Europe
Family: Betulaceae

Notes:
 
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