Texas Waterlilies carries it and claims it is a medium plant, which would indicate that a 3-5 gallon pot would be sufficient. I have no first-hand experience with it. Overwintering tropicals is hard, though, and for me requires a combination of warm water and high light. I know some people can put tropicals to sleep and wake them up again, but I never had the knack. Once they go into a dormant corm, I can't ever get them to grow again.
