Canadian municipalities are taking action to prevent the sale of invasive plants at local garden centers, while advocates are urging the Canadian government to implement a nationwide approach to regulate the horticultural industry.
Invasive plants pose a threat to biodiversity nationwide, prompting municipalities to address gaps in the current regulatory framework that varies between different regions. Canada has committed to reducing the introduction and establishment of known invasive species by at least 50 percent by 2030.
The Canadian Coalition for Invasive Plant Regulation (CCIPR) is calling on the federal government to establish a regulatory body for the horticultural sector and create a national database identifying invasive plants and their associated risks in various regions. CCIPR co-founder Cathy Kavassalis emphasized the importance of informing the public about potential harm from invasive plants, drawing parallels to existing safety measures for other products.
While the Canadian Food Inspection Agency (CFIA) oversees some invasive plants under the Plant Protection Act, individual provinces and territories have their own legislation targeting invasive species and weeds. The CFIA highlighted that their approach is focused on specific species and risks, rather than a blanket prohibition covering all potentially invasive plants in every region.
Efforts to manage invasive plants are seen as a collaborative effort involving federal agencies, provinces, municipalities, industry stakeholders, and invasive plant organizations. The CFIA emphasized that any expansion of federal restrictions would be contingent on the risk posed by specific species and the authority granted under current laws.
Recent actions by Canadian cities underscore the growing concern over invasive plants. Nanaimo and Surrey have taken steps to restrict the sale of plants identified by local invasive species councils, while London’s environmental committee has proposed requiring retailers to provide information on invasive plants and animals to customers during sales.
Advocates are calling for comprehensive measures at the federal level to address the challenges posed by invasive plants in the horticultural trade. A recent study highlighted the role of ornamental non-native plants as a key pathway for introducing invasive species, emphasizing the need for a coordinated national approach to information sharing and regulation.
Industry experts like Jim Hole support initiatives to prevent the spread of invasive plants, noting that many garden centers have voluntarily ceased selling invasive species in the past. Efforts to enhance research, regulation, and public awareness are seen as crucial in supporting greenhouse owners and farmers in managing unwanted plants effectively.
Native plant advocate Lorraine Johnson emphasized the role of nurseries in influencing consumer choices and biodiversity conservation. She highlighted the importance of promoting native plant gardens to support pollinators and ecosystems, urging for increased public awareness and education on the impact of invasive plants in gardens.
Regulating garden centers is viewed as a way to combat “plant blindness” among the public and foster a deeper appreciation for the ecological interconnectedness of plants in outdoor spaces. The call for greater federal oversight and industry responsibility underscores the growing urgency to address the challenges posed by invasive plants in the horticultural sector.
