Native SpeciesSince first being discovered in North America in 2002, the Emerald Ash Borer (EAB) has killed millions of Ash trees throughout Ontario, and the Great Lakes States.  The EAB is known to attack both stressed and healthy Ash trees, and because it has no known enemies, there is no widely accepted treatment to control the population.  The results have been loss of habitat and food for other species, loss of urban and rural biodiversity, and a loss of valuable timber used for the production of furniture, buildings, and recreation.

Ash Trees were once a staple throughout municipalities because of their quick growing nature and adaptability along urban streets.  In some cases, it has been reported that Ash Trees have made up almost 20% of a municipality’s urban canopy.  This poses a serious threat as the removal of these trees has a negative impact on air quality, biodiversity, wildlife, as well as tourism, property value, and the quality of life within urban environments.

Replacements For Ash TreeBased on the degree of infestation and health, many ash trees are being removed to limit hazardous conditions and minimize the safety risk associated with these dead and declining trees.  In order to maintain the current number of trees, replacement plantings have begun in many areas.

St. Williams Nursery & Ecology Centre offers many alternatives that would be ideal to replace Ash trees that need to be removed as a result of EAB.  When selecting a replacement species, it is important to consider soil type and quantity, its ability to work with the surroundings, as well as the requirements for pollution and salt tolerance.  We encourage you to please contact us to discuss your needs so that we can assist you in finding an ideal alternative.

Species to consider:

Larger Trees

  • American Basswood (Tilia Americana)
  • Black Gum (Nyssa sylvatica)
  • Chinquapin Oak (Quercus muehlenbergii)
  • Common Hackberry (Celtis occidentalis)
  • Kentucky Coffee Tree (Gymnocladus dioicus)
  • Pin Cherry (Prunus pensylvanica)
  • Pin Oak (Quercus palustris)
  • Red Maple (Acer rubrum)

Small Trees & Shrubs

  • Redbud (Cercis canadensis)
  • Serviceberry (Amelanchier arborea, humilis)
  • Wild Crabapple (Malus coronaria)

Species for larger areas/parks

  • Bur Oak (Quercus macrocarpa)
  • Freeman Maple (Acer X freemani)
  • Tulip Tree (Liriodendron tulipfera)

If you are working to replace Ash Trees in your community please contact us today to discuss the best solution to fit your planting needs.  Call us toll free at 1 866 640 8733 or email


Many Native Species Offer Suitable Replacements For Ash Tree
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