Red Rubin and Kalinda are very nice sempervivum to have in your collection. In addition to those, I also have Cobweb Buttons. I find Cobweb Buttons to be a very interesting variety, but also a challenge. It always wants to rot for me. I have to put it in a location sheltered from the rain and never water it. A unique one though I've almost lost it completely several times.
But I thought I'd pass it on
