I support Monarch Butterflies and their Migration by planting several types of Milkweed and nectar rich fall to late fall bloomers.
HAVES:
Assorted Milkweed: Common, Swamp, Tropical, and tuberosa (Butterfly Weed)
Assorted Fall Blooming Asters
Assorted garden worthy Goldenrods
Two kinds of Joe Pye Weed
WANTS:
Black eyed Susans, Cone Flowers, any plant that is a butterfly/pollinator host or nectar plant.
PROMISED:
Same as Sallyg above "I'll also use the swap tool and tree-mail. Will edit this as I can. Feel free to bug me any or all methods if you want something.