I didn't have any rotting here in the bed I made last fall. I'm not saying it would work in SE Virginia, but mine made it safely through the winter. As long as you don't submerge the crowns, why would they rot? The water in the bed is 1-2 inches deep, usually, and the soil level in the pots is higher than that.
It's not for everyone Susan, but it was something unique that I'd never heard of before, and I was intrigued enough to try it.
Thought others might be intrigued by it too....
I would HATE to lose 50 DLs at once... owie