Erigeron (fleabane)

Good drought tolerant edging or rockery plant in poor soil. This came from a cutting from a dry wall in Shanklin I.O.W. many years ago popped in a wee plastic bag breathed into and sealed. It survived long bus journey north and now thrives here and in friends' gardens. Best to take rooted cuttings each autumn to guard against very cold winter conditions which can do for it.