I am remembering something i heard about growing peonies in southern California.. ( Rather an absurd idea when you realize that the National Collection is in Minnesota.) But I heard that there were a few "addicts" who actually got Peonies to stay dormant long enough to flower by putting ice cubes on them every night for a period of time in the winter. I wonder if it would work to cool the semps down in really hot climates when it is super hot ??? If you were growing in chick grit or fine gravel the melted ice would not cause too much wet around the roots. Black plastic pots also make the root ball area very much hotter than clay or better yet hypertuffa pots.
Just some thoughts from someone who has only been to Florida once (in the winter) Take it with a grain of salt.
