Canadian municipalities are taking steps to prevent the sale of invasive plants in local garden centers, urging the federal government to establish a unified approach for regulating the horticultural trade. Invasive plants pose a threat to biodiversity nationwide, prompting cities to address gaps in the current regulatory framework that varies by location. Canada has set a goal to reduce the introduction and establishment of known invasive species by 50% by 2030.
The Canadian Coalition for Invasive Plant Regulation (CCIPR) advocates for the creation of a regulatory body overseeing the horticultural industry and the development of a national database identifying invasive plants and associated risks in different regions. CCIPR co-founder Cathy Kavassalis emphasized the need to inform the public about potential harm caused by invasive plants, similar to existing practices with other products.
The Canadian Food Inspection Agency (CFIA) oversees some invasive plants under the Plant Protection Act, while provinces and territories have their own legislation on invasive species and weed control. The CFIA adopts a species- and risk-based approach rather than a blanket prohibition, restricting the import, sale, and movement of regulated pest plants sold for ornamental purposes.
Nanaimo and Surrey councils have recently passed motions to limit the sale of invasive plants, with London’s environmental committee recommending retailers to provide information on invasive plants at the point of sale. Advocates stress the importance of a cohesive national strategy to combat invasive plants, as studies have shown that ornamental non-native plant sales are a primary pathway for introducing invasive species.
Efforts to prevent the spread of invasive plants are supported by most garden centers, as demonstrated by actions like discontinuing the sale of identified invasive species. Nurseries can play a vital role in preventing the introduction of invasive plants by enhancing research, regulations, and public education. Native plant advocate Lorraine Johnson highlighted the impact of nurseries in biodiversity loss, emphasizing the importance of native plant gardens for supporting ecosystems and pollinators.
Regulating garden centers not only helps prevent the spread of invasive plants but also educates consumers on the ecological impact of their gardening choices. The push for federal intervention aims to create a unified approach to curb the sale of invasive plants and protect biodiversity across Canada.