pjkfarm

Zone 7 in the east is totally different from zone 7 in the west, or zone 7 in other places so would be helpful to have a more specific location.
In zone 7 Virginia (or even 6 b) we are digging pups now and putting in pots for growing on in winter, as well as in ground (basjoo to be left, other musa to be dug at first frost and stored as corms or pstems - p stems for the first time as we have always simply stored the corms), so would see no reason not to buy and do the same.