My 'Mac' is fairly sturdy but I have the peony hoops (think 'disgustingly expensive') around most of mine also. The outer blooms do seem to 'list' a bit without support although in general the stems are really strong. And the blooms, while large, are not doubles. To me they have always resembled a boquet of roses. Dont know how my new ones planted last fall will do but I can see a big bill coming up for supports.
