Short's aster, Symphyotrichum shortii

Short's has flower heads about an inch across, with rays in this pastel blue shade. The more I've seen it, the better it looks. So now it's in my garden. In 2017 we added some to Ives Preserve. It wasn't much of an invasion. They already occur within a couple hundred yards of the north boundary. And anything native added to the old gravel pit on the southwest side seems like progress. Short's aster grows in AL, AR, FL, GA, IA, IL, IN, KY, LA, MD, MI, MN(T), MS, NC, NY, OH, PA, TN, TX, VA, WI, WV, and ON. Lenawee Co MI, 10/11/12. Aster family, Asteraceae.