Just curious, Chris, do you get rust where you are? I am 6b too, it does not seem to overwinter here, and I am not sure I would recognize it. Before I was really aware of it I traded with lots of people from more southerly states, and pretty sure I received some with rust, some that looked pretty sick. I don't seem to have any now so I assume it does not overwinter here. I do think zones don't tell the whole story.
