Daylilies ARE tough and hardy, just some aren't in certain locations. Heck, I also lost other tough and hardy perennials. And the thing about daylilies is that sometimes they just aren't happy for whatever reason. I have given away some that did amazing in someone elses yard!
I will be the first to admit that I like to press the zones just to see if a daylily can and will survive. Tusk was always a gamble for me. Part of the problem may have been that single fan I got, in the years I had it, it never became more than that, nor grew well, no matter what I did for it. And yes, the other problem is my location.
For good news, Lillian's Banging Mangoes survived!!! It is looking a bit rough but I now have proof of life, so I am happy.
And, we never did get frost, although we got down to 34 for several nights. Plus, we didn't get any snow like I heard Chicago got. I will say this, the dandelions sure do like this weather though! ~Jan