This delicate visitor sprouted in one of my vegetable pots, completely unexpected and unknown. The little blossom is pinker than it looks here--not really blue as it appears in this shot. It's one of those coolly violet shades that are so hard for an amateur photographer to catch. This is a small plant with small 5-petaled flowers and finely cut feathery leaves similar to cosmos or a wisp of fennel. I have had no luck so far trying to find its name.