Prostrate Symphotrichum forms
Recently we moved Symphotrichum ericoides 'Snow Flurry' into several pockets in a rock wall, and have been impressed by their performance. Now we are hunting for other colour forms of Symphotrichum to add to the wall to give it more interest in the late season. I know that S. ericoides comes in other colour forms (pink or blue), but have not been able to find any other prostrate/creeping forms to compliment 'Snow Flurry'. I would welcome any recommendations (US zone 5 to 6 here).