Well, so far, so good with the coloring on this sedum. Seems like the color intensifies with the colder weather.
Marilyn, I am finding that the sedum to need more water during dry spells, even here in the milder climate of the Pacific Northwest. So you might need to water your sedum more often.
In the spring I can send you some starts of this one to test in your growing conditions. That would be a great experiment to understand more about the growing zones for it.