Canadian municipalities are taking action to prevent the sale of invasive plants in local garden centers, while advocates are urging the Canadian government to establish a nationwide approach to regulate the horticultural industry. Invasive plants pose a threat to biodiversity across the country, prompting local governments to address gaps in the current regulatory framework, which varies by jurisdiction. Canada has set a goal 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 calling on the federal government to create a regulatory body for the horticultural sector and develop a national database that identifies invasive plants and their associated risks in different regions. According to CCIPR co-founder Cathy Kavassalis, even if a complete prohibition is not feasible, it is crucial to inform the public about potential harms, similar to other regulated products.
While the Canadian Food Inspection Agency oversees some invasive plants, individual provinces and territories have their own legislation for invasive species and weed control. Efforts at the local level include Nanaimo and Surrey passing motions to restrict the sale of invasive plants, and London recommending that retailers provide information on invasive species at the point of sale.
Kavassalis highlighted the need for a cohesive national strategy to address the issue, emphasizing the role of government at all levels in finding solutions. A national database could enhance information sharing among provinces, territories, retailers, and gardeners regarding invasive plant risks in different regions. Additionally, Kavassalis proposed removing invasive plants from shelves or clearly labeling them to raise awareness.
Horticulture expert Jim Hole mentioned that most garden centers support measures to prevent the spread of invasive plants, citing an example where his greenhouse ceased selling a known invasive species. He emphasized the importance of research, regulation, and public education to assist greenhouse owners and farmers in managing unwanted plants effectively.
Native plant advocate Lorraine Johnson emphasized the influence of nurseries on consumer choices and biodiversity, noting the industry’s reliance on selling non-native plants that can disrupt ecosystems. She stressed the importance of native plant gardens in supporting pollinators and biodiversity.
Regulating garden centers can play a crucial role in combating “plant blindness” among gardeners, encouraging a deeper understanding of the ecological impact of the plants in their gardens. The collaboration of government, industry, and consumers is essential in addressing the challenges posed by invasive plants and promoting environmental stewardship.