Maplewood is working to prevent the establishment of invasive plants that are just starting to move into our area. Controlling these plants before they are widespread is typically more successful and much less expensive. Ramsey County Cooperative Weed Management Association has identified eight species of concern, which are listed below. Through its Invasive Plant Patrol, Maplewood is on the lookout for these species. If you see them on public land, please report them to the city.