Well, at least you showed control! You've never grown them before, right? If so, you'll be in zinnia heaven. Best of all, no powdery mildew ever, even here in hot, humid mildew heaven.
I've given up on the other types of zins, just because of the PM.
In 2007, what looked like this in June
Looked like this when I returned from a week of vacation in August
Karen