Thank you for the info. Last year I had a few planted together with Canna lilies in a two giant pots. I did do the same as you and cut them down and brought them inside but only one or two of them made a show this year. It may be because the cannas got so large in the pots though.
Sorry that happened! Compared to letting them die for sure outside, I always thought it was worth the effort. Here's another spot reclaimed from grass to have a home for some Crinums a friend gave me. This is another spot in the front yard. Mostly Portulaca amilis, since it was free for the taking by just pulling plants out of the lawn.