Noxious and Invasive Plants of Calgary, AB

This guide aims to educate users in recognizing some of Alberta's invasive plants and to help document their distribution.

The following list includes noxious and invasive plants outlined by the Province of Alberta and City of Calgary as prohibited noxious weeds and plants.

There are many others that are currently not designated as noxious/invasive that can compromise quality of Alberta's landscapes through erosion, reduced biodiversity, and degraded habitat. Some of these have also been added to the list.

Post observations of invasive plants in the Calgary region when you encounter them.
Together, we have an opportunity to improve the quality of environment through education and proper management. less ↑