You may have also solved a mystery for me as I have a mystery phrag with a very similar name, but I know nothing about it. The flower from a photo that was taken of it before I bought it looks very similar and somehow in the name there is a "rose" reference. Could you possibly take a photo of the foliage so I could compare it?
Also, I have had this phrag for almost two years. It is huge, but I cannot get it to bloom. What are your growing conditions?