I planted SDK in May 2021.He's in a good sunny location. He put on a lot of fans that first summer ( although some of them turned out to be Fulva). This summer, SDK bloomed from July 7 - 18 with 14 blooms. By October, he was up to 8 fans and no rust, even though other plants around him had it. The blooms are lovely, I'm looking forward to this clumping up.