I bought and planted 2 White Pampas Grass plants that I planted on the north side of my dog's pen to help conceal it and block some wind in the winter! I thought the area got more sun than it did, and I don't think they're going to survive there, so it looks like I'm going to have to transplant them somewhere else! Now my question is...any suggestions on what I could put there? I'd like something that gets tall and stays "full" throughout the year! I'm in Zone 5!