On my first trip to the Chicagoland fest 15 (?) years ago, I picked up a stuffed compot of these and have hung on to one as it is one of my favorite species. These, at least, did not take so long to bloom as the Arthur and roebelenii albescens, and this has bloomed for me on and off for the last 12 years or so. I have another moquettianum as well from different parentage, but for some reason it does not bloom as readily.