Peony 'Bowl of Cream' Rotten Bloom
I've never seen anything quite like this before. Usually the buds and blooms on herbaceous peonies get busted or die way before they start to open. These buds on Peony 'Bowl of Cream' and Peony 'Kansas' made it pretty much all the way to open, but the seemingly endless rain we've had this year seems to have badly rotted some buds that started to open in the rain. I'm not sure if this is some kind of disease or blight or really just rotting from too much water. Luckily this only happened on one bloom on each of these plants. So it's definitely not systemic. My guess is these peonies will be back to normal next year (provided Mother Nature pulls back on the rain a bit!) Let's see...
Peony 'Kansas' Rotten Bloom