I'll be storing this one in the greenhouse for the winter, along with the much larger Ensete superbum (that's the one with the really big base!). One of the greenhouses is kept at cooler temps than the others, but not quit cold-frame temps. This is where they stored the E. superbum and E. 'Maurelii', along with several other bananas, last winter.
1aday, you must be thinking of the huge E. superbum when you talk of the huge base! It is over 2 feet in diameter.
E. superbum:
