Stunning succulents Gerhard!
I do cover them religiously in the winter although most of them are hardy in our climate. The Agave desmettiana 'Variegata' is getting so big, I expect it to throw a flower spike soon. From what I've read, they bloom after 5-7 years. But luckily there are quite a few pups.
In your garden? So jealous...
Yes, in the mounded bed next to the front door.