One of the most important considerations for putting the right plant in the right place (RPRP) is the amount of sun that an area receives. In shady spots, many options are available, as long as consideration is given to just how shady it is. Some perennials are adaptable to more than one level of shade, so they are included in more than one list below.
Light shade
Ajuga,
Astilbe
Bergenia
Brunnera
Campanula
Clematis

Coral bells
Cranesbill
Foxglove
Goat’s beard
Lamb’s ear
Lavender
Lobelia
Monarda/bee balm
Periwinkle
Phlox
Pulmonaria
Primrose
Medium shade
Ajuga
Anemone
Astilbe
Bishop’s weed

Bleeding heart
Columbine

Hosta
Japanese spurge
Lady’s mantle
Lamb’s ear

Lamium
Ligularia
Lily of the Valley
Lily turf (may not be totally hardy in Nebraska)
Periwinkle
Pulmonaria
Solomon’s seal
Virginia bluebells
Heavy shade
Foxglove
Japanese spurge
Hakonechloa
Hosta
Lady’s mantle
Lamium
Ligularia
Lily of the valley
Osmunda

Periwinkle
Pulmonaria
Tiarella/foamflower