Canadian municipalities are taking action to prevent the sale of invasive plants in local garden centers, advocating for a national regulatory approach to control the horticultural trade. Invasive plants pose a threat to biodiversity nationwide, prompting cities to address gaps in the current regulatory framework, which varies by jurisdiction. Canada aims to reduce the introduction and establishment of known invasive species by at least 50% by 2030.
The Canadian Coalition for Invasive Plant Regulation (CCIPR) is urging the federal government to establish a regulatory body for the horticultural industry and develop a national database identifying invasive plants and associated risks in different regions. Recognizing the need for public awareness, CCIPR co-founder Cathy Kavassalis emphasized the importance of informing the public about potential harm posed by invasive plants, similar to other regulated products.
While the Canadian Food Inspection Agency (CFIA) oversees some invasive plants under the Plant Protection Act, provinces and territories also have their own legislation to control invasive species. The CFIA focuses on a species- and risk-based approach rather than a blanket prohibition, restricting the import, sale, possession, and movement of regulated pest plants used for ornamental purposes.
In response to local initiatives, various Canadian cities have taken steps to restrict the sale of invasive plants. Nanaimo and Surrey have passed motions to regulate plant sales, while London’s environmental committee recommended providing information to customers about invasive plants at the point of sale. Despite these localized efforts, advocates like Kavassalis argue for a more cohesive federal strategy to address the issue.
Addressing the horticultural trade is crucial to meeting Canada’s 2030 biodiversity target, according to Kavassalis. Studies have shown that ornamental non-native plants are a primary pathway for introducing invasive species, with nurseries potentially contributing to a significant portion of these introductions. Establishing a national database could facilitate information sharing among stakeholders and aid in identifying high-risk plants.
Horticulture and agriculture expert Jim Hole highlighted the willingness of most garden centers to support measures preventing the spread of invasive plants. He emphasized the importance of research, regulation, and public education in controlling unwanted plants, noting the significant benefits of keeping invasive species out of ecosystems.
Native plant advocate Lorraine Johnson emphasized the role of nurseries in influencing consumer choices and biodiversity loss. She highlighted the importance of native plant gardens in supporting pollinators and ecosystems, urging the public to consider the ecological impact of their gardening practices.
In conclusion, coordinated efforts at all levels of government, along with increased public awareness and industry cooperation, are essential in combating the spread of invasive plants and preserving Canada’s biodiversity.