What is the TOUGHEST historic bearded iris in your garden?
I'm planning a new garden for the front yard. I would like to start growing more historics, and I'm looking for those that are "tough as nails". Do you grow a named historic that seems like the postman, impervious to rain, sleet, snow, hail, heat, humidity (or anything else Mother Nature brings)? If so, please tell us about it!