Hi Epiphyte78,
Here is a thread in the Sempervivum forum where we discussed the semponium.
The thread "xSemponium" in
Sempervivum forum
I don't think anyone in this forum has one of these yet, but what great fun it would be to watch it grow throughout a year.
Glad you found your way here and I look forward to seeing how your experiment comes along.
Please keep us posted on your journey.