Flowers like cardinal flower,fringed breeding heart,harebells,hepatica,Jacob's ladder,rue anemone,spring beauty,wild columbine will be suitable flower plants that can be planted under low light or partial shade.
The best plants for low light or shade are aglaonema, this plant thrives on its own. Another plant is african violet.This plant actually blooms beter when neglected. Some other ones are zebra plants, and bromeliads.