I’m trying to make my yard and garden more inviting to pollinators, and I’m having trouble finding greenhouses in the Duluth area that don’t treat their flowers with long-lasting systemic insecticides that get into the pollen and nectar. I don’t want to bring flowers and shrubs home that will poison the bees and butterflies I’m trying to attract. Any recommendations for where to get untreated plants locally? I’ve gotten some at Burchfiel’s and some at Boreal Natives, but they don’t have everything I’d like to plant.