Tennessee Smart Yards Native Plants
A comprehensive database of Tennessee native plants
Biennial Black-eyed Susan
 Photo Courtesy of Prairie Moon Nursery http://www.prairiemoon.com/  Photo Courtesy of Prairie Moon Nursery http://www.prairiemoon.com/  Photo Courtesy of Prairie Moon Nursery http://www.prairiemoon.com/  Photo Courtesy of Prairie Moon Nursery http://www.prairiemoon.com/ |
Biennial Black-eyed SusanRudbeckia hirtaFull to part sun, moderately wet to dry moisture level, all soils except coarse rocky soil, slightly acid to neutral pH. 3-4 ft. height, blooms in summer, yellow flowers, re-seeds readily.Germination Code: C(30)Native Region: Middle and East Tennessee, lightly in West TennesseeMay be annual, biennial or short-lived perennial. Plant can become a pest by re-seeding but does put on a striking floral display. Not as attractive as many of the other rudbeckias. Native to prairies, plains, meadows, pastures, savannahs, and woodland edges. Attracts birds and butterflies.flower;sun;wet;clay |
Tennessee Smart Yards Native Plants 
While my comment is not scientific in nature, I always have a soft spot for these little wild beauties. They are my mother’s favorite wild flower and a delight to see amongst fields of grass in Middle Tennessee summers.
I love these, AND they multiply like mad in my Knoxville back yard garden, popping up in the most unexpected places! They spread themselves well by dropping seeds too, so if you plant one , expect to have several surrounding that one the next year. Mine come back year after year after year…