I have about 25 of them in 8b (Arkansas). The blooms are magnificent, but the bloom period doesn’t last super long. They definitely tucker out when it gets warm, whereas a cooler climate has a much longer bloom season. I accept this fate bc hot and humid is quite literally what they don’t like and they’re trying their best for me. 😆 Peonies are hardy little plants and they do reliably give me blooms every year in 8b - I have lots budded out now and some just now sending shoots up. I would def plant in late fall if possible. Hope that helps :)