The link below will take you to a page that has links to the Bulletins of the Sempervivum Society. While the Society apparently has been gone for awhile, the Bulletins are well worth the time to read. Some are stuffy and boring, some terminology is "scientific" and a little hard to get into. Some of the info is dedicated to species rather than the hybrids we enjoy today. However, you can find information about the history of many of the popular varieties and info about the people who created them. It took me weeks to read all this stuff the first time, but it was well worth the effort.
http://stalikez.info/fsm/semp/...
