This wonderful tiny sedum is a New World Plants introduction. According to their information it is not a hardy sedum, and it will not survive freezing temperatures. I will try keeping some on my covered deck during our zone 8 winter to see whether it will tolerate a dry/cold winter.

Edited 8/7/2014
This sedum started blooming for me in July. It seems that it has a very long bloom period. It is easy to miss the fact that it is in bloom or in bud, due to the fact the the flowers are extremely tiny. It is well worth the effort to use a magnifying glass to take a close look at the beauty of the flower. Very free flowering once it gets started in the bloom cycle.
Thank you, chickhill, for this very special plant.