The second picture shows it at the Gardens at Kendrick Lake, that cornucopia of perfectly grown plants. They have planted this on North facing as well as South facing banks there: they seem to do equally well.
I have a sad little specimen at home I shall not share right now: Oh! to have the space and watering system set up to grow chubby, cheerful plants like this!
This was championed by Plant Select way back in 2002! I doubt it shall ever fall out of fashion again!