Thank you for all the great info!
Butterfly plants for my area:
Ironweed, butterflyweed (also a good host plant), joe-pye weed, summer phlox, thrift, buttonbush, abelia, lilac, liatris, native asters, sunflower, tithonia or Mexican sunflower, purple coneflower and zinnia.
Sunflowers also attract goldfinches, so that's a plus.
