At one point in time, perhaps a decade ago, I had about 200 species and cultivars of Sempervivum and Jovibarba. The idea was to create a patchwork quilt garden of colorful semps. But of course, with my ridiculous schedule, my potted semps eeked out a meager living in pots too small, languishing frrom utter neglect, and sadly I lost many (most) of them over the years, and some that I still do have the labels are lost or worn off... grrrrrr.
A few years ago an offset from a tray of potted Sempervivum cultivars dropped off into a gravel "drip strip" under the roof overhang, the semp doing very well there and growing into a pretty clump. But I don't what which one it is, although I seem to recall a red ciliate one called 'Maigret', maybe that is its name.