Monarch on Blue Giant Hyssop

I have blogged about Monarch Butterflies—this individual perched atop a Blue Giant Hyssop in the Carleton College Arboretum last Sunday. This mint is a summer-bloomer, usually lasting into September. October nectar must be quite attractive butterflies. This wildflower brings in bees. People are also attracted, since the flower makes for licorice-flavored teas and jellies. Blue Giant Hyssops are found in north-central and northern North America. Thanks to Nancy Braker of the arboretum for identification help.