I have Dave as well, and a pink one that isn't blooming yet. I did have some purple ones but they seem to have disappeared over the years.

David is quite resistant to powdery mildew so is a good choice. I had Norah Leigh which has variegated leaves with pinky-violet flowers that was resistant as well but she didn't overwinter for me this year; it was a brutal winter. Natasha and Laura are said to be less susceptible to mildew as well. If you google Mildew Resistant Phlox you will get a list of cultivars that are less mildew prone and advice for growing.

There is a discussion on Phlox over on the Perennial Forum you might want to check out; lots of nice pictures.

I have never had much luck growing phlox. Tried a few times and it rarely overwinters. Even the arctic phlox doesn't survive.

I love tall garden phlox! This is 'Becky Towe'.

This post was edited by twrosz on Tue, Aug 12, 14 at 1:05

Very nice Twrosz! How long have you had it?
I'm interested in the varieties that are hardy in Far North gardens. My SIL had a Nora Leigh, but it didn't overwinter for her.
Donna, the purple one I have has been thriving for many years. It would fill the whole bed if I let it. I'll go take a picture of it today.

north53, I've grown 'Becky Towe' for at least 15 years. Most garden phlox do well here in zone 3, though I've had problems when we've received very little snow cover ... thankfully, that's rarely been the case with being in a snow belt.