Nectar:
Ageratum
Asters – may not get quite as large as their sunny cousins
Bleeding heart
Butterfly bush
Cardinal flower
Catchfly
Columbine
Coreopsis
Dutchman’s breeches
Foxglove
Dianthus – some varieties do very well in the shade
Globe Amaranth- gives a lot of color and nectar to the garden
Goldenrod
Impatiens
Lobelia
Marigolds – can do great with very little sun
Meadow rue
Monarda – Bee balm
Moonbeam
Nicotiana
Pentas
Periwinkle
Pink turtlehead
Porterweed
Purple Coneflower
Rudbeckia
Salvia – Indigo Spires
Salvia – Lady in Red
Shasta Daisy – Seems to do ok in partial shade
Shooting star
Sweet Alyssum
Thyme
Tickseed
Host:
Dill
False nettle
Fennel
Milkweed
Parsley
Passion vine
Pawpaw
Pearly everlasting
Pipevine
Plantain
Violets