Self propagating plant for field in open sun with mixed soil of normal to very wet

Question

We have a field that is between 2 to 3 acres that goes from normal soil (loam) to very wet soil that is lower through the center of the field with a small stream at the north end that floods whenever we get heavy rainfall. We want to mow it down, plow it and disc it then plant something that will spread by itself heavily and bloom as close as possible from early spring to the first frost. IF you can answer this question, you will receive a blue ribbon as being the only site of very many who could answer the question. Most do not even bother to attempt to answer. We understand there may not be any plants that exactly meet our conditions, but at least some should come close even if we have to plant two different types of plants: one for the near bog condition and one for the very wet condition so we are willing to accept whatever you can come up with. We live in zone 6 between Nashville, IN 47448 and Morgantown, IN 46160 and we really are exactly 1/2 way between on State Road 135 and 1 mile west.

Thank you for trying to help us!

Answer 1

Have you thought about wildflowers? Here are wildflowers that are native to your area:

https://www.usi.edu/science/biology/TwinSwamps/Wildflowers_of_Twin_Swamps.htm

https://extension.entm.purdue.edu/publications/POL-6/POL-6.pdf

https://www.purdue.edu/hla/sites/yardandgarden/prairie-wildflowers/prairie-wildflowers-native-to-indiana/

https://plants.ces.ncsu.edu/plants/hibiscus-moscheutos/

https://web.extension.illinois.edu/wildflowers/directory_detail.cfm?PlantID=854&page=2

https://sites.pfw.edu/native-trees/IPSAWG.pdf