BLUE ASH - FRAXINUS QUADRANGULATA

blue ash bark

Common Name: blue ash

Scientific Name: 
Family: Oleaceae
GenusFraxinus
Speciesquadrangulata

Hardiness Zone: 4 to 7
Height: 50 to 75 ft
Width: 35 to 60 ft

Description:
​Of the ash in Minnesota, the blue ash is the easiest to identify due to the square edges of the branches (square cross-section). The foliage of the blue ash turns from a dark green to a pale yellow in the fall. Due to the emerald ash borer's spread across Minnesota it is not advised to plant this species of ash.

blue ash foliage
blue ash twig
blue ash bark
blue ash form

 

 

 

 

 

 

References:

Richard Webb, Bugwood.org