actually, I think that would look great- I'd want to add a sedum or something that blooms orange, to give it the full chromatic scale, and the the near-black of the hollyhock, and the white of the peony should make the whole bed 'pop'...but then I'm a bloody art major, and when I moved into this house, and the beds were full of red and yellow tulips, my first thought was apricot daffodils and the brightest orange tulips I could find!