Yes, I lost Tusk after 2 years. It never did well, and never bloomed.
Sometimes the actual hardiness has nothing to do with the plant, it can be a combination of soil conditions, how frigid it gets, mulching, and how well the plant is doing when winter arrives. I also think that sometimes plants that are doing really really well at the end of a growing season expend all their energy before winter and don't do well the next year if winter and spring are rough.
Plus, it's not only winter that can affect daylilies. I tend to have more problems if spring is very wet and damp and cold with extremes in temperature ( warm weather followed by cold and damp) causing daylilies to break dormancy then rot.
I personally have evergreens, semi regrets and dormants, although I try to be more aware of evergreens I my area. I also use leaves and mulch, especially if they are newer. Snow is actually a great barrier to extreme temperatures - it's the freezing and thawing that are hard on plants. . After that, they are on their own. If I am thinking about an evergreen, I try to find information on how it does in this zone prior to purchasing.
The only one I have from your list was Tusk, and as previously mentioned, even though I babied it, I lost it.
PS - welcome to ATP!
