Wild Black-eyed Susan is a biennial native prairie wildflower (a biennial native prairie forb). Rudbeckia hirta is a biennial native prairie wildflower (a biennial native prairie forb). Oak Prairie Farm offers retail native prairie wildflowers (retail native prairie forbs). Oak Prairie Farm offers wholesale native prairie wildflowers (wholesale native prairie forbs). This page provides biennial native prairie wildflower (biennial native prairie forb) wild plant propagation information. This page provides biennial native prairie wildflower (biennial native prairie forb) wild seed production information, This page also provides biennial native prairie wildflower (biennial native prairie forb) wild seed sales information.

Black-eyed Susan	Also called: Brown Betty and Brown daisy

Botanical name:	Rudbeckia hirta

Description: Each lovely yellow flower has up to 20 petals and a nearly black center. These biennial, open, branching plants are up to 3 feet tall, with fuzzy leaves and stem.

Attracts:	Butterflies and Honeybees.
Bloom time:	From June through October.
Range:	Northern U.S. and south.
Sunshine:	Full sun, tolerates partial shade.
Moisture:	Fairly wet, to middle, to quite dry.
Soil types:	Well drained clay or loam best, tolerates sandy.

Suggested seed treatment: No further pre-planting seed treatment is necessary. You would get some increase in germination from 30 days of cold moist stratification. Many prairie wildflower seeds benefit by moist cold stratification, some require it to germinate. Seed that you purchase from Oak Prairie Farm has not received cold moist stratification.

Direct planting tips: Plant seed in desired location, when soil reaches 70 degrees,1/4 inch deep, and firm.

Transplants: If you grow transplants from our seed: transplant while dormant in spring or fall, trim long roots, plant with buds just below the soil surface, space 1 to 2 feet apart. Very vigorous.

Companion prairie plants: New England aster, Wild bergamot, Purple coneflower, Big bluestem, Indian grass.

Comments: Very vigorous. Long lasting as cut flowers.

indicates photos taken by Dan Klapper.

indicates photos taken by Dr. Era Jo Moorer. All others taken by Lin Heinrich.
See the About Oak Prairie Farm link on the Home page for more information concerning photographers.