Canadian municipalities are taking action to prevent the sale of invasive plants in local garden centers. This move comes as advocates urge the Canadian government to establish a national strategy for regulating the horticultural trade.
Invasive plants pose a threat to biodiversity nationwide, prompting municipalities to address gaps in the current regulatory framework, which varies by jurisdiction. Canada has committed to reducing 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 industry and develop a national database that identifies invasive plants and associated risks in different regions.
CCIPR co-founder Cathy Kavassalis emphasized the importance of informing the public about potential harm from invasive plants, suggesting that similar measures are already in place for other products and should be extended to plants.
While the Canadian Food Inspection Agency (CFIA) regulates some invasive plants under the Plant Protection Act, provinces and territories have their own legislation for invasive species control. The CFIA stated that their approach is focused on species and risk assessments rather than blanket prohibitions, with restrictions on the import, sale, and movement of regulated pest plants.
Efforts to manage invasive plants are seen as a shared responsibility among various stakeholders, including provinces, municipalities, industry players, and invasive plant organizations. The consideration of broader federal restrictions depends on specific species’ risks and existing legislative powers.
Recent initiatives at the municipal level include Nanaimo and Surrey passing motions to restrict the sale of invasive plants, and London’s environmental committee recommending informational requirements for retailers selling such plants.
Advocates like Kavassalis stress the need for a comprehensive approach involving all levels of government to tackle the issue effectively. They point out that current solutions are fragmented and inefficient, leading to wasted resources.
Addressing the horticultural trade is crucial to meeting the federal government’s 2030 target in combating invasive species. Studies have shown that ornamental non-native plants sold by nurseries are a significant pathway for introducing invasive species, underscoring the need for a coordinated national effort.
Experts like horticulturist Jim Hole support measures to prevent the spread of invasive plants, emphasizing that most garden centers would back such initiatives without significant financial impact. Greater research, regulation, and public education are proposed as essential tools to assist greenhouse owners and farmers in managing unwanted plants effectively.
Advocates highlight the influence of nurseries on consumer plant choices and stress the importance of native plant advocacy to support biodiversity. They call for increased awareness among consumers and more significant industry responsibility in promoting native plant species that benefit ecosystems and pollinators.
Regulating garden centers is seen as a step towards addressing “plant blindness” among gardeners and fostering a deeper appreciation for the ecological role of plants in the broader natural world.