I can't believe this didn't occur to me sooner: what better way to force your obsession on your friends and family than to start a blog about it? All gardening, all the time, since 2005.
The Salvia Reptans had to go. The flowers were too small to justify the weedy look. I replaced them with Caryopteris 'Longwood Blue' and 'Dark Knight'.
The Salvia Leucantha got huge and floppy, and kind of dominated the bed.