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This is officially my favourite Sempervivum and I think I can say that with no hesitation. Gorgeous silvery colour, velvety texture, thick leaves and compact rounded rosettes. Pictures online show an attractive red winter colour as well.
It was pricey at $8 (around a 5" pot and beautifully grown so actually not a bad price) but I got a great deal (40% off) on this and another $5 Sempervivum (which "officially" "completes" my collection) I'll post pictures of once I get some pictures that actually make it look good. It's a bit of an Oddity.