Don't want to mislead anyone, Deb.
I'm a big phlox (Phlox paniculata) person. We currently have about 30 named phlox cultivars in our garden and so have some experience with them. 'Nora Leigh' seems to be more or less unique among all our phlox cultivars for looking so nice in September and on into October. All of the others have already bloomed and rebloomed (with deadheading) by mid-September, most well before then.
'Nora Leigh' is a later flowerer, but we have so much of it for its foliage. I'm quick to cut back our phlox at the early sign of powdery mildew, but don't remember having seen powdery mildew on 'Nora Leigh'. It seems so odd that a variegated-leaf phlox is so mildew-resistant, when you tend to think of variegated perennials as weaker (viz. better behaved) than the non-variegated forms. Perhaps the fact that it's a late flowerer is a factor and perhaps my focus on continually cutting back summer and early fall bloomers (to expose the lower spring bloomers to light and water) also helps the plant to fend off the mildew.
