It is probably the easiest of the hardy Pinguiculas to grow, in standard boggy conditions. The dormant winter buds, or hibernaculae (oh yes, there's a word for it!) produce little offsets (sometimes called gemmae) that make propagation easy.
I photographed this plant in the Pynenees because at the time I thought that it could be Pinguicula x scullyi (grandiflora x vulgaris). It had deeper purple flowers than any I had seen before , and a less open, flat faced corolla, but later study knocked that idea on the head!