University of Illinois Extension
Black Eyed Susan (Rudbeckia hirta) - Wildflowers

Directory of Wildflowers

Black Eyed Susan
Rudbeckia hirta

Black Eyed Susan
Black Eyed Susan

Quick Profile

Exposure
Full Sun
 
Mature Height
1 - 3 Feet
 
USDA Hardiness Zones
3 - 10 
 
Native To:
Illinois
Indiana
Iowa
Michigan
Missouri
Ohio
Wisconsin
 
Soil Conditions
Dry
Moist, Well-Drained
 
Bloom Color
Yellow
 
Bloom Season
June - October
 

Features

Yellow daisies with drooping petals and a dark cone in the center.

Culture

Full sun; moist, well drained soils. Avoid crowding plants to reduce fungal problems. Tolerates some dryness.

Notes

Found in fields and open woods. This species may be biennial or perennial, but is often utilized in the garden as an annual.