Green Ash

General
Scientific Name: Fraxinus pennsylvanica
Mature Height: >45’
Hardiness: Zone 2
Leaves: Deciduous
Plant Type: Tree
Growth
Rate: Medium
Mature Height: >45’
Longevity: Long
Power Line: No
Ornamental
Flowers: Inconspicuous
Fruit: Tan samara
Fall Color: Yellow

A hardy, native, drought- and somewhat salt-tolerant medium-tolarge tree. Since the onset of Dutch elm disease, green ash has been over-planted in urban and conservation settings as a replacement for American elm. The largest tree in North Dakota is 69 feet tall with a canopy spread of 74 feet.

Light: Full sun.
Water: Prefers moist, well drained soils.
Soil: Adaptable to a wide variety including high pH and slightly saline soils.

Although this tree is generally adapted to North Dakota, it is not currently recommended due to its susceptibility to emerald ash borer (EAB). As of May 2022, EAB has not been found in North Dakota, though it is found in central Minnesota, Sioux Falls, SD, and in Winnipeg, Manitoba.

A fast growing tree that transplants easily and readily tolerates urban pollution.

There are many varieties that differ in form and crown density; there are also some seedless options.

Credits: North Dakota Tree Selector Website, Manual of Woody Landscape Plants 6th edition.