I keep passing a garden with a lovely shrub in it. It's only about a foot high and two across. It has long stems of pretty pink flowers that start at the bottom of the stem and die off as you go up the stem so the last flower is at the tip. It looks like a helianthemum flower but the leaves seem narrower and the stems don't really match helianthemum. It flowered in late May/beginning of June and has gone over now. Does anyone recognise it?