SC - peony

[ND Wederstrandt]

According to the Texas A & M University page on edible flowers... peonies
are edible.
If you are interested I can give you the page since they specialize in
developing new strains of various things.  They are the ones who developed
the mild jalapeno strain.  A very strange bird (mild hot pepper)... Anyway
they posted a whole list of edible flowers including peonies.

Hope this helps,

Clare St. John