We have had this one since 2007 and it had never bloomed until now. It had been potted in fir bark and was not doing good, so we mounted it on a hard sandstone slab with some moss last year. And it decided to bloom for us this year
Lovely! Congratulations!
I cannot grow anything in fir bark. I think my home is just too cool in the winter and, in the summer, outside, Ohio is just too rainy.