Becky, I think if I had planted in September the new plants would have been enveloped in rust. That is about when they were looking their worst. But my last order was not planted until the middle of October, after the hot weather had abated a bit. That really worked out fantastic this year. I might not be able to do that every year, but I will be trying it again, I really enjoyed planting in the fall. I was really miserable planting in July, that I will hope to never do again.