I have a few that have lasted the past 4 years or better.Mine are all grown in containers. I've learned to winter them under my porch. I water everything under it once a month during the winter. And I don't put them out until we get dryer weather. I'll have to go out later to get their names. But off the top of my head, white swan has been growing here probably 8 years or more. I do think it's our wet winters and spring that are killing them.
