I'm 125 miles south of the Tennessee State line... I planted some seeds the first week of February and some of them were up by the first week of March. The wild plants didn't come up until about the first week of April.
What county are you in? I'm in Choctaw County and it occurs naturally here. I planted some wild simulated this past spring. It'll be interesting to see how much of it survived the drought we had in late summer.