Hi Nate, you're welcome. If the plant is sufficiently water stressed, yes, the new foliage can easily rust. Expect some rust from them no matter what, but if you're being a bit miserly on the water or if there is an irrigation issue, expect the whole thing to rust. Meyer is a horrible rust bucket there, too and it can NOT be sprayed. It has enough Rugosa in it that spraying it results in the entire plant turning yellow and all foliage falling. I loved Tamora and grew it everywhere I could squeeze one in, but rust was always there, from light to extreme. Clair Martin had planted curved beds of it around the Tempietto and beds of French Lace at The Huntington Gardens. They were gorgeous, and it was interesting seeing whether Tamora or French Lace would out rust the other.