These are the native prairie plants in my yard. Most are from Prairie Originals.
Winnipeg, Manitoba was in Zone 3a (or USDA 2) as of the 1961-1990 index and Zone 4a (or USDA 3) as of the 1981-2010 index. It will likely continue to change.
The plants that are native in one area can be invasive in another - verify before planting.