A week after I planted my peony plant in 2008, we had a horrible storm here in Omaha which tore the plant up so badly I was sure it would die.
Luckily, it came back nicely the next spring, but about a day after it opened its single bloom, we had a hailstorm which tore it to shreds again.
The next year it put out two or three blooms and within a day or two, a storm. Flowers, gone.
This year the plant produced four blooms. They've been opening one by one throughout the past week.
The last one bloomed earlier today...
Batten down the hatches.