Almost every gardener knows butterfly-bushes. Their eyes are there for our eyes. Literally. Showy flowers like this exist to please the eye. Of course, they're much more interested in engaging pollinator eyes than they are in interacting with us. But it pays off both ways. We gardeners, much to the benefit of bushes and butterflies, have now made this a common, or even invasive presence all around the world. With us butterfly-bushes have gone wild in CA, CT, GA, HI, IA, KY, MA, MD, MI, NC, NJ, NY, OH, OR, PA, SC, TN, VA, WA, WV, and BC. Its invasive in OR and WA. My garden, 7/25/11.