Woolly blue violets, commonly Viola sororia, are Missouri wildflowers that grow in wooded areas, thickets, and along stream banks. A stemless, rhizomatous, low-growing perennial with downy, heart-shaped leaves and large blue-violet flowers (sometimes white with purple veins). The flowers are borne on leafless stalks. It blooms in early spring and sometimes intermittently into the summer.

Growing conditions include average, medium, and well-drained soil in full sun or part shade. Plants prefer soils that are moist and humusy. Self-seeds readily, becoming weedy in optimum growing conditions despite not spreading by runner