Green ash (Fraxinus pennsylvanica), also known as the 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 Europe from Spain to Russia. Other names more rarely used include downy ash, swamp ash and water ash.

Green Ash Facts

  • Scientific name: Fraxinus pennsylvanica
  • Range: throughout the East and across the Great Plains to the Rocky Mountains
  • Height: up to 65 feet tall
  • Fruit: paddle-shaped seed pod, favored by birds
  • Fall colors: leaves turn yellow

You Can Take Care of Trees Like the Green Ash

  • Plant in late fall or winter when the tree is dormant, unless the ground is frozen. 
  • Allow plenty of room for the tree to mature and grow.
  • Water it regularly in its first three years.
  • Spread mulch around the base of the tree. 
  • Keep an eye out for the invasive emerald ash borer insect, which can kill ash trees.

If Trees Could Sing…

Click here to see Giancarlo Guerrero talk about one of his favorite trees. Video courtesy of The Nature Conservancy and Giancarlo Guerrero, Director of the Nashville Symphony Orchestra.