The photos of these two peonies, Peony 'Lemon Chiffon' and Peony 'Roy Pehrson's Best Yellow' both show an example of something I noticed on several early peonies this year that usually have multiple blooms per stem. The main (and most developed) bud suffered bud blast, while the later developing side buds were not affected and were able to continue developing. So the stage of bud development definitely has some bearing on whether the buds will survive such cold weather. The more developed the bud when the cold hits, the less chance it has of surviving. There are also lots of examples of peonies whose main buds were blasted, leaving no survivig buds on the stem. These are usually on peonies that only have one bloom per stem like Peony 'Nova' and Peony 'Honor'.
Main Bud Blasted | Main Bud Blasted |
Main Bud Blasted | Main Bud Blasted |
Peony 'Firelight' seemed to suffer the most from the late freeze in my garden this year. Although it did manage to get a few blooms open, the majority of the buds on this plant were blasted by the freezing cold weather. Its foliage growth was even stunted by the cold air. On a couple of stems on this plant, not just the buds were blasted, but the actual stem was wasted by the frigid temps. You can see a couple of these wasted stems in the photo hanging limply with their blasted buds upside down. This tough peony was not to be defeated though, as it sent up and extra latecomer - a replacement stem with a bud ready to bloom on it!
Peony 'Firelight' Buds Blasted, Foliage Stunted, and Stems Wasted
Peony 'Firelight' Sends Up a Replacement Stem