Cuphea procumbens. Grown from seed this year, so don't know much about it yet. I see that I already posted a picture of this about a month ago, but since this is the only flower shot I have so far this month, I'm leaving it here. The color is actually a rich magneta-purple - my camera's autopilot never gets blues and purples right. I haven't noticed the hummingbirds around this one.