http://www.mcall.com/entertainment/all- ... ory?page=3
These are midwest to east coast species of plants.
Good nectar sources are also good for butterflies.
Baby blue eyes
Nemophila menziesii
(Sun to semi-shade; well-drained soil)
Purple coneflower
Echinacea purpurea
(Full sun; well-drained soil)
Sunflower
Helianthus annuus
(Full sun)
Cardinal flower
Lobelia cardinalis
(Full sun; well-drained or moist soil)
Great blue lobelia
Lobelia siphilitica
(Sun to semi-shade; moist soil)
Pycnanthemum multicum
Mountainmint
(Sun to semi-shade; well-drained to moist soil)
Beebalm
Monarda didyma
(Full sun; semi-shade)
Asclepias tuberosa
Butterfly milkweed
(Full sun; dry soil)
Zizia aptera
Meadow zizia, golden alexanders
(Full sun to semi-shade; dry soil)
Smooth blue aster
Symphyotrichum laeve
(Sun to semi-shade; moist or dry soil)