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Blue Ash: Fraxinus quadrangulata

A blue ash Leaf of a blue ash Twig of blue ash
A blue ash
Courtesy G. Lumis
Leaf of a blue ash
Courtesy G. Lumis
Twig of blue ash
Courtesy G. Lumis

Scientific Name: Fraxinus quadrangulata

Hardiness Zones: 4 to 7 
Height: 40 ft
Spread: 30 ft 
: oval 
Type: deciduous tree 
Annual Growth Rate: 12 to 18 inches 

The blue ash is a native tree with dark green foliage during the growing season but changing to yellow in the fall. 

Text courtesy University of Michigan State Extension Service