"...a gardener who knows his flowers and is ignorant of his weeds is like half a coin, a tail without a head." Sara B. Stein
Thanks Marie. Maybe turtlehead? That's what I'm going to call it until more evidence arrives. Say mrroww to Don Estorbo.
I think it's an obedient plant Physostegia virginiana.Aporn
I think you're right. Thanks Aporn. Obedient plant is a nice name. This site (http://www.bluestoneperennials.com/b/bp/PHVIS.html) says it's deer resistant so I'll watch for it next summer and see if I can harvest some seeds. Or maybe I'll transplant one or two plants from the park next door, where this picture was taken, into my yard, just a few hundred yards away. Some would call that stealing. I guess it is, but it seems so benign.