I will be digging up some cavendish bananas in early Oct. and only want to keep a few. The rest are compost or yours...They range between 5'-7' tall plus pot(currently planted directly in the ground). This variety does produce edible fruit unlike the musa basjoo(cold hardy banana). Without a greenhouse it would be tough though in this zone...These are not cold hardy and need to be brought indoors until next spring...Check the banana forum for more details on this species. Maybe a dozen after they are divided. Maybe some elephant ear bulbs(walmart kind...that get 6' plus) and castor bean seeds -18' plus. Snooze or loose.