Frilly, Sempervivum and Jovibarba should be totally hardy outside in TN. If the temps stay above freezing, there will be some modest growth. Below freezing, they go dormant.
This spring, we had lots of snow cover that melted a bit early. I had many semps in pots still partially covered in snow, obviously coloring up and growing before the snow fully melted. It was a real pleasure to see this, since it told me that spring was coming after a very difficult winter. I hope that answers your question.
