Invasive Species

What is an invasive plant species?

It is a plant that has been introduced from another part of the world that in the right conditions will alter or harm a native ecosystem, drastically impacting its survival.

How does it do that?

It will spread rapidly and crowd out native trees, shrubs and wildflowers. They will compete for nutrients and sunlight and prevent them from thriving. If the native species can’t thrive, then the insects that need it for survival will die out.

How does it impact wildlife?

Lots of wildlife depend on native trees and plants to provide them with shelter and food. When that disappears, so does the wildlife.

Why it matters:

Southern Ontario and Niagara is a region of rich biodiversity – from Carolinian forests to oak-pine woodlands. Invasive species reduce rare species, disrupt the food webs and increase management costs for cities and landowners.

What you can do:

• Learn to identify invasive species. Use the app from iNaturalist if you aren’t sure.
• Pull patches by hand safely and properly on your own property. Destroy through solarization (leave it in the sun to dry out and die – don’t put it in the green bin until you do).
• Don’t buy them from plant nurseries; choose native plants instead
• Find reputable sellers of plants or seeds for native plants.
• Report sightings www.eddmaps.org
• Join garden groups of native plant enthusiasts and take part in the native plant movement!