There is some rather interesting work being done on ginseng genetics at this point. Which is why I asked. John Young of the US Geological Survey is doing some extensive work in this area. I got to see his presentation a couple weekends ago at the 2014 Ginseng Summit. He had a few graphics of his work which were really very interesting. In a nutshell, there are three main overarching strains of ginseng. Based on geographical locations, it seems that one strain is found mostly on the eastern side of the Appalachians, the second on the western side, and the third along the Ohio River Valley. There were other isolated populations with unique markers but lets keep it simple.
The stuff from Wisconsin was consistent with that of the Ohio River Valley group. This doesn't answer the question of whether the stuff found in the Ohio River Valley was replanted using seed from Wisconsin, or conversely if the stuff from Wisconsin was derived from wild seed collected along the Ohio River Valley. When I talked to him, John agreed either was possible.
I do not know with which group my seed will identify. However, I wonder if we can take interest in the differences Hugh points out and get a general idea of which group tends to ripen earlier if any. So, if any others are willing, chime in and lets see where your seed originates (as far as you know) and how far along the seeds are at this point.