Joe Pye Weed, Eupatorium, is a native plant whose range extends from Texas to Maine. It can be used in perennial flower beds, or allowed to flourish on the roadside or in fields. I planted a small variety in my garden this spring, but I love the 6 foot tall ‘weeds’ that grow in the fields.
I am not successful of getting photographs of butterflies, but butterflies find lots of nectar in the tiny blossoms of the Joe Pye Weed flower head, which can be very broad. It is easy to grow in sun or very light shade, in soil moist or dry. While it is a good nectar plant for butterflies, it does not support caterpillars. Host plants for caterpillars include milkweed, dill, parsley, cabbage, sunflowers and many others. For a more complete list click here.
This year in my own garden I found that garlic chives are a great nectar plant. Next year I am going to plant mountain mint which also attracts many butterflies and other pollinators.