I had this come up in my garden this year and I really can't remember what it is or where I would have got it from. Or for that matter planting anything where this is. It's not Purple Prince as it is a deeper colour, wider more open flower and has speckles in the throat where P.P. doesn't. The foliage and flower is more OT like than oriental I think. Any ideas? The bottom two pictures are a little dark but it shows the side view with some leaves. The top two are pretty accurate for colour.
