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Green ash

Fraxinus pennsylvanica

Also called Red Ash, Downy Ash, Northern Red Ash, Green Ash, Red Ash

Green ash
Photo: Jerzy Opioła, CC BY-SA 3.0

Green ash is a medium-sized deciduous tree native to eastern and central North America, widely planted as a shade and street tree. It grows best in moist soil, often along streams and in bottomlands.

Family
Oleaceae (Olive family)
Grows as
Tree
Light
Full sun, Part shade
Water
Water regularly while young; mature trees tolerate wet soil and periodic dryness.
Soil
Tolerates a wide range of soils, including wet and clay soils.
Temperature
Very cold hardy, roughly USDA zones 3 to 9; hot humid summers are tolerated.
How easy
Easy
Native range
C. & E. Canada to WC. & E. U.S.A.
Climate
temperate

About

Fraxinus pennsylvanica, the green ash or red ash, is a species of ash native to eastern and central North America, from Nova Scotia west to southeastern Alberta and eastern Colorado, south to northern Florida, and southwest to Oklahoma and eastern Texas. It has spread and become naturalized in much of the western United States and also in Argentina and Europe, from Spain to Russia.

Other names more rarely used include downy ash, swamp ash, and water ash.

Where it grows

It is the most widely distributed of all the American ashes; its range centers on the midwestern U.S. and Great Plains. Seedlings of the tree have a high tolerance to water logging which may explain why the natural habitat of green ash is almost exclusively stream sides and bottomlands. The large seed crops provide food to many kinds of wildlife.

Other Fraxinus plants

White ash · European ash · Gregg's ash · Formosan Ash · Manchurian ash · Manna Ash · Fraxinus platypoda · Chinese Flowering Ash · Velvet ash · Ash

Text excerpted from the Wikipedia article Fraxinus pennsylvanica by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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