Japanese Primrose. Japanese primrose (Candelabra primrose), which is cold hardy in USDA plantings zones 3 to 9, grows 12 to 24 inches tall. Plant Japanese primrose in full to part shade and it will reward you late spring to early summer with whorls of flowers in colors of pink, red, purple or white.
Tartarian Daisy. The mauve colored petals of tartarian daisy (Aster tartaricus) appear in late summer and into early fall on top of stems 3 to 4 feet tall. Plant tartarian daisy is full sun in USDA zones 3 to 8.
Astilbe. The springtime blooms of astilbe (Astilbe x arendsii) display like tiny blooms of white, pink or burgundy on a feathery stem. Astilbe, which is cold hardy in USDA zones 3 to 8, grows in full shade to part sun and reaches 18 to 24 inches tall. Astilbe is shown in the image at the top of this article. Read more about Astilbe, a shade perennial and How to harvest astilbe flower seeds
Winter Aconite. Presenting yellow blooms in late winter to early spring is winter aconite (Eranthis hyemalis), which grows to about 6 inches tall. Plant is USDA zones 3 to 7.
Grecian Windflower. Preferring light shade, Grecian windflower (Anemone blanda) grows 6 to 12 inches tall. Spring time bloom colors may be white or shades of pink, blue or purple. Grecian windflower is cold hardy in USDA zones 5 to 10.