Rudbeckia hirta (Asteraceae)
A stiff, upright annual or short lived perennial native to the eastern United States, but has become endemic throughout North America. The Black-Eyed Susan is probably the most common of all American wildflowers. The characteristic brown, domed center is surrounded by bright yellow ray florets. Thrives in most soils in full sun. A true sunshine worshiper that forgives neglect.
Suggested Use: Roadsides, open fields, floral gardens, mixtures. Miscellaneous: The state flower of Maryland. When cut, has a vase life of 6 to 10 days. Reseeds.
Average Planting Success: 80%
Height: 2 - 3 feet
Germination: 7 - 30 days
Optimum Soil Temp. for Germination: 70°F
Sowing Depth: 1/16"
Blooming Period: June - August
Average Seeds Per Pound: 1,710,000
Seeds/Pkt: 1,875 - covers 25 sq. ft.
1 oz Covers: 1,361 sq.ft.
Seeding Rate: 2 lbs. per acre