knock-outs a great!
I tie up peonie now using cut down rebar, 5 stakes per plant and then tie string around and through until you make a star. At least I did on the three largest clumps behind the patio where the tent was at the ru - the peonie there are all double blooms, Kansas, Sheila Barnhart and other that escapes memory right now. it this works it will be worth the effort to do all of them next year. such a waste for them to fall to the ground.