Blackeyed Susan
Rudbeckia hirta L. - Aster family
Size
Mature Height: Up to around 12 inches
Plant Type: Forb/herb
Root Depth: 10 inches
Growth Form: Single Stem
Growth Rate: Rapid
Features
Flower Color: Orange
Conspicuous Flowers: Yes
Bloom Time: Summer
Seasonal Growth: Fall, Winter and Spring
Evergreen: No
Fall Colors: No
Conditions
Shade Tolerance: Intolerant
Clay Soil Tolerance: Yes
Sandy Soil Tolerance: No
Drought Tolerance: Medium
Flood Tolerance: None
Fire Tolerance: Medium
Salt Tolerance: None
Ecosystem Interactions
Pollinators: Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Moths; Butterflies; Larval Host (Butterfly); Larval Host (Moth)
Larval Species depending on Blackeyed Susan: Charidryas gorgone carlota, Charidryas nycteis, Chlorochlamys chloroleucaria, Chlosyne nycteis, Isophrictis similiella, Papaipema nebris, Synchlora aerata, Synchlora aerata aerata
Native Range
- USA: Alabama, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
- CAN: Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan
State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.