Hi Lilylady,
All sempervivum are monocarpic, meaning after they flower they die. It generally takes several years before that happens though and hopefully they'll have produced a number of chicks to replace them. Here is some good general information about them:
Sempervivum
Do you collection sempervivum? We'd love to have you join us over on the sempervivum forum too!
http://garden.org/forums/view/...
