Have 2 big pots of Tropicanna that have already been put to bed for the winter. Send me a pic of the Wyoming & we can talk trade in the spring? FYI, I leave the tubers in the pots and put the whole thing in a cool dark closet. Worked for me for 3 yrs now. Probably not the best method, but I do it anyway. Don't know if that will affect your desire to trade.
Carol

Thanks for all the responses! A good many of you gardeners have responded via email. It has been great. :-)

I do have enough now to have a beautiful canna garden, come spring trades. Much appreciated the responses.