Boy, am I late in finding this thread. Awesome photos chickhill. Love the leaf casting on the side of the containers. How to you accomplish the scalloped edges?
I read that Sedum 'Little Missy' is only hardy to zone 8 and will tolerate lite frost. It is suppose to be evergreen, but I would watch the dead container to see if it will come back from the roots. Would sure be wonderful if it does. Keep us posted on what happens with it.
It is a beautiful sedum, I'll have to see where I can find that one. Maybe it would over winter on my covered deck?
Coral Reef goes dormant here in my zone 8 winters, yours should come back from the roots and maybe even some of the dead looking stems. Gorgeous photo of a happy and healthy Coral Reef.
Ogon is another one that goes dormant in the winter.
Is your Tricolor in full sun? The ones I have in shade/partial shade tend to be green, the ones in full sun have lots of color.