It is Zantedeschia aethiopicda 'Large White' if that is helpful. I have placed it on a shelf in my small pond and will see how it does, it's in about 6-8" of water. It appears I should treat it as a water lily during the winter, and submerge it to the bottome of the pond for protection. Or bring it in to the barn or basement. I'll likely try the first option.
