Someone on my walk inquired about this private planting. I don't even understand what I'm looking at - is it purple tepals and yellow petals? It looks like it would be a rock garden or ground cover plant. It also rings some bell, as if it was posted here recently, but I don't know how I'd find it.
Polygala chamaebuxus var. grandiflora http://www.kevockgarden.co.uk/plantlist/p14jan_polygala_chamaebuxus_grandiflora.htm
Thanks. That looks just like it, and it was not posted recently. Nadia posted two other Polygala last year, and there have been around ten other postings, all of them different Polygala and all of them looking very different to me from each other. Common name: shrubby milkwort.