I don't see the photo, but I'd love to! I looked up the 'Mad Hatter' and of course, it is now on my list. Google showed me a photo of a crested 'Jungle Shadows' that was AMAZING!
I look forward to any Sempervivum gatherings, they sound wonderful!
Check this out. I noticed some growth happening on this crested semp and then realized it seems to be sending stolons out the top! I am wondering how that is going to work!?