Manchurian Ash

General
Scientific Name: Fraxinus mandshurica
Family: Oleaceae (Olive)
Hardiness: Zone 3
Leaves: Deciduous
Plant Type: Tree
Growth
Rate: Fast
Mature Height: >45’
Longevity: Medium
Power Line: No
Ornamental
Flowers: Inconspicuous
Fruit: Tan samara
Fall Color: Yellow

A medium to large tree similar to the native black ash in leaf characteristics. Has a slightly lower moisture requirement than black ash. Produces a very dense, oval to rounded, shapely crown. First-year twigs are golden colored. Lacy-textured foliage. The largest tree in North Dakota is 37 feet tall with a canopy spread of 25 feet.

Light: Full sun.
Water: Prefers moist, well drained soils.
Soil: Adaptable to a wide variety of soils.

Manchurian ash is less susceptible to emerald ash borer (EAB) compared to ash species that are native to North America. However, it is not 100% resistant and may fall to EAB if there are very large numbers of insects. 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.

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