Just as California gardeners love their year-round sunshine, Wisconsin gardeners hold their winter snow in high esteem. It's a natural mulch, they will tell you, protecting the roots of flowers (Wisconsin Online). All perennial flowers go dormant, and then make their reappearance at the appropriate time. Wisconsin perennials wait out the winter beneath the snow and burst into bloom during all three of the remaining seasons.
Spring Perennial Flowers of Wisconsin
Bloodroot is a Wisconsin native that grows to six inches tall and blooms in star-shaped, white flowers from March to July. Used in certain homeopathic remedies, bloodroot grows in shady areas in all but six Wisconsin counties.
You can find sharp-lobed hepatica, another Wisconsin native, in the beech-maple woods of northern Wisconsin. You will know it by its white, pink, blue or lavender flowers: the first to appear in the spring. Sharp-lobed hepatica is a perennial herb.
Wild columbine, another spring bloomer, makes its appearance from May to July. It grows to three feet in height and blooms in pretty, red and white drooping flowers.
Summer Perennial Flowers of Wisconsin
Yarrow, which some Wisconsin residents consider a weed, is a perennial flowering plant that blooms from June to October. This native Wisconsin wildflower crops up a lot in Wisconsin lawns and grows from eight to 40 inches in height.
Black-eyed Susan, native to all areas of Wisconsin, is readily recognizable by its daisy-like yellow flowers with dark brown centers. These plants bloom from June to October and will grow one to five feet in height.
Autumn Perennial Flowers in Wisconsin
The frost aster is a native Wisconsin wild flower that blooms with white flowers on feathery stalks. It does best in southern Wisconsin, where it will grow from one to five feet and flower from August to November.
Despite being known as the New England aster, this flowering perennial is native to Wisconsin and found mainly in wet areas. In fact, it is nicknamed cranberry weed for its frequent invasion of cranberry beds. The flowers bloom from August to October.
Butter-and-eggs, considered invasive in Wisconsin, is a perennial flowering plant that lives up to its name with snapdragon-like, soft yellow flowers. You can find butter- and-eggs in bloom from June to October.