I have a beautiful Paeonia officinalis 'Rubra Plena' - described here on my top 100:
http://www.ideasforgardens.com/bestplantsl/top100gk.phpThe original is under a large Rowan Tree (Sorbus) directly in front of our dining room window to be enjoyed on even the coldest days of spring. Traditionally
there are high winds when it is in full bloom, and since it has huge 5in blooms it can end up sprawled all over the ground.
This year Ive staked it and a few of its valuable "offspring" with steel rods about 10mm diameter - the reinforcing rods from a demolition job on reinforced concrete. They are the best stakes Ive ever used. I cut them to about 30in long and closely surrounded each plant with 5 or 6 rods.
Advantages:
they could be hammered into the hard ground with a mallet.
they were almost less conspicuous than a heavy stick that would have been necessary to do the same job
absolutely rigid support
reuseable
For the first time ever, I had a brilliant display from these fine plants.