According to this press release, the Nature Conservancy has formed an interesting partnership with the Midwest US supermarket/department store chain Meijer. Starting this spring, Meijer will be offering Nature Conservancy-branded plants in their garden center. The plants, which will make up 16% of Meijer's nursery inventory (not sure if that's number of species or total number of plants), will be marked as "Recommended Non-Invasive" with a special icon, and presumably include both native plants and non-native plants deemed to be non-invasive. Included on the list are species such as purple coneflower (Echinacea purpurea) and white pine (Pinus strobus).
In addition to their new sales campaign, Meijer has voluntarily committed to removing two invasive plant species from their inventory: Norway maple (Acer platanoides) and Lombardy poplar (Populus nigra). They will also be donating money to help with invasive plant management and making an effort to educate both the public and their own nursery workers about invasive plants.