Thanks! The plants will go dormant when it gets cold, so they
should be safe staying in the large tank of water, which won't freeze in our climate.
A little update - some of the lotus got eaten by
deer, and only one of them is doing very well. I think I'll be lucky if I get more than one of them to maturity. But one will be
enough to fill this large tank. If I end up with more than one, I'll try putting one in my frog pond garden.