Gail, of
Clay and Limestone, kindly sent me some
Penstemon X last year, which included a bonus
Phlox (I'm assuming it's the PPP that is a standout in her garden).

Both are flourishing and the phlox is flowering now, after a season heeled into a rich potting mix in a container.
I'll be transplanting both to suitable permanent spaces this spring, which will be a lovely passalong plant to think about.