Canadian municipalities are taking action to prevent the sale of invasive plants in local garden centers, urging the Canadian government to implement a national strategy for regulating the horticultural trade. In response to the threat of invasive plants endangering biodiversity nationwide, local governments are stepping in to address gaps in the existing regulatory framework that differs from one jurisdiction to another. Canada has committed to reducing the introduction and establishment of known invasive species by at least 50% by 2030.
The Canadian Coalition for Invasive Plant Regulation (CCIPR) is advocating for the establishment of a federal regulatory body overseeing the horticultural industry and the creation of a national database outlining invasive plants and associated risks in various regions. CCIPR co-founder Cathy Kavassalis emphasized the importance of informing the public about potential harm from invasive plants, suggesting that similar consumer alerts are provided for other products and should be extended to plants.
While the Canadian Food Inspection Agency (CFIA) regulates certain invasive plants under the Plant Protection Act, provinces and territories have their own laws governing invasive species and weed control. The CFIA highlighted that their approach focuses on species and risk assessment rather than a blanket ban on all potentially invasive plants in all regions. They can restrict the import, sale, possession, and movement of plants identified as regulated pests, including those sold for ornamental purposes.
The CFIA emphasized that regulatory actions are only part of the solution, stressing the need for a collective effort involving federal and provincial authorities, municipalities, industry stakeholders, and invasive plant organizations in managing invasive species. Municipalities such as Nanaimo, Surrey, and London have taken individual steps to restrict the sale of invasive plants within their jurisdictions, signaling a growing trend towards localized regulations on invasive species.
Advocates like Kavassalis are calling for a comprehensive national approach to address the horticultural trade, citing studies that highlight the role of ornamental non-native plants in introducing invasive species. They propose the establishment of a national database to provide stakeholders with information on invasive plants and advocate for clear labeling or removal of invasive plants from shelves. Nurseries like Jim Hole support efforts to curb the spread of invasive plants and believe that stronger research, regulation, and public education can benefit both businesses and the environment.
Native plant advocate Lorraine Johnson emphasized the influence of nurseries in promoting biodiversity loss through the sale of non-native plants and stressed the importance of educating consumers on the impact of their gardening choices. Kavassalis underscored the need to combat “plant blindness” among gardeners by encouraging a deeper connection between plants in gardens and the broader natural world.
Overall, the push for stricter regulations on invasive plants in the horticultural trade reflects a growing recognition of the need to protect biodiversity and ecosystems from the threats posed by invasive species.