Joe Pye definitely needs some advance thought as it is a rather formidable plant. I had placed it badly, and have now given it a much larger space to spread his elbows more freely. He's actually outside my actual herb garden at the edge of a pasture. He should do fine competing with the orchard grass. Re Stella, I'll give it a whirl and if she lifts easily I'll just split her up as best I can. Should I worry about her climbing on top of herself, or is that just a daylily thing? My younger Stellas have not yet started mounding up, should I split them when they first show signs of this? I have them planted in several spots, which makes for a nice display when they all bloom together. Very jolly.