What is a good perineal plant for shaded yard besides hostas?

Liriope,Heuchera,bleeding hearts,ferns

Lady's mantel....worm wood...raspberries plants....

Here are some of the best shade plants for zone 6:

Bigroot Geranium – Hardy in zones 4 through 6, this 2-foot tall plant produces pink flowers in the spring and the foliage of some varieties changes color in the fall.

Ajuga – Hardy in zones 3 through 9, ajuga is a groundcover that reaches only 6 inches in height. Its leaves are beautiful and are purple and variegated in many varieties. It produces spikes of blue, pink, or white flowers.

Bleeding Heart – Hardy in zones 3 through 9, bleeding heart reaches 4 feet in height and produces unmistakable heart shaped flowers along wide spreading stems.

Hosta – Hardy in zones 3 through 8, hostas are some of the most popular shade plants out there. Their foliage comes in a huge variety of color and variegation, and several produce extremely fragrant flowers.

Corydalis – Hardy in zones 5 through 8, the corydalis plant has attractive foliage and stunning yellow (or blue) clusters of flowers that last all the way from late spring to frost.

Lamium – Also known as deadnettle and hardy in zones 4 through 8, this 8-inch tall plant has attractive silver foliage and delicate clusters of pink and white flowers that bloom on and off all summer.

Lungwort – Hardy in zones 4 through 8 and reaching 1 foot in height, lungwort has striking variegated evergreen foliage and clusters of pink, white, or blue flowers in the spring.

Also,

maidenhair ferns, plantain lilies, caladiums, hellebore, alchemia, columbines, snakeroot, bunchberry, viburnum, impatiens, creeping wintergreen, ninebark and Siberian carpet cypress.

Heucheras, also known as coral bells. They come in a variety of shades and sizes. Columbine is another good one. Impatiens are annuals but if you let them go to seed, they'll come up the following year with zero effort on your part.

cladium impatiens

Yes-Heuchera - 14" mounds, Lime green color, Beautiful!

Bleding hearts are lovely when planted between hostas

lillies of the valley

i like azaleas