Canadian municipalities are taking action to prevent the sale of invasive plants in local garden centers, while advocates are urging the Canadian government to implement a national approach to regulate the horticultural trade. Invasive plants pose a threat to biodiversity nationwide, prompting municipalities to address gaps in the current regulatory framework that varies by location. Canada has committed to reducing the introduction and establishment of known invasive species by 50% by 2030.
The Canadian Coalition for Invasive Plant Regulation (CCIPR) is calling for the establishment of a federal regulatory body overseeing the horticultural industry and the creation of a national database identifying invasive plants and associated risks in different regions. According to CCIPR co-founder Cathy Kavassalis, informing the public about potential harm from invasive plants is essential, similar to how other products are regulated.
The Canadian Food Inspection Agency (CFIA) regulates some invasive plants under the Plant Protection Act, while provinces and territories have their own legislation for invasive species control. The CFIA stated that their approach focuses on species and risk assessment rather than a blanket prohibition on all invasive plants nationally. They emphasized that managing invasive plants is a collaborative effort involving federal and provincial authorities, municipalities, industry stakeholders, and invasive plant organizations.
Recent initiatives by various municipalities reflect the growing concern over invasive plants. Nanaimo and Surrey have moved to restrict the sale of invasive plants, while London’s environmental committee recommended providing information on invasive plants at the point of sale. However, Kavassalis highlighted that the current fragmented approach places the burden on municipalities rather than higher levels of government.
Advocates are calling for federal action to address the issue, emphasizing the need to regulate the horticultural trade to meet the 2030 biodiversity target. Studies have shown that ornamental non-native plants are a primary pathway for introducing invasive species, with nurseries potentially contributing up to 80% of these introductions. A national database could provide stakeholders with critical information on invasive plants, helping to mitigate risks at the regional level.
Experts like horticulturist Jim Hole support efforts to prevent the spread of invasive plants, noting that most garden centers would comply with regulations to safeguard biodiversity. Educating the public and enhancing research and regulation can help greenhouse owners and farmers in controlling invasive species effectively. Native plant advocate Lorraine Johnson emphasized the role of nurseries in biodiversity loss, urging a shift towards native plant cultivation to support local ecosystems and pollinators.
Addressing the sale of invasive plants at the national level through coordinated efforts involving all levels of government, industry stakeholders, and the public is crucial to combatting the spread of harmful species and preserving biodiversity.
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