I just bought a mini penny from the clearance racks. Pitiful little thing, but for 3 bucks couldn't leave it there to its demise. It has brown leaves but vigorous growth coming from the crown.

So late in the summer, I would like to grow it in a container. Perhaps until next Spring or perhaps beyond. What type and size of container do you suggest? Would plain potting mix suffice to help this baby get her engines running?