Jim, ahhh, super.
"It attracts large numbers of bees and is sought after by beekeepers as a source of late summer honey."
So it DOES provide a flow during the dearth. Unfortuneately I don't have any place to plant it in my own yard, but I could start a bunch in pots and transplant them in the over-grown or county owned land around here... could probably find space for at least 20 of them, maybe more.