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© Denver Botanic Gardens

black-eyed Susan
Rudbeckia hirta


  United States

Synonyms
black eyed Susan; blackeyed Susan
Dimensions
Height: 1.0 ft. to 2.5 ft.
Spread: 1.0 ft. to 2.5 ft.
Growth Form
Herbaceous
Program Association
Xeriscape Incentive Program
Wildlife Uses
Grassland Birds, Pollinators/ Invertebrates, Riparian Birds, Small Mammals, Wetland Birds
Sun Requirements
Full Sun, Part Sun
Water Requirements
Low
Plant Community
Foothills, Mountains, Plains, Wet Meadow
Season of Bloom
June, July, August, September
Flower Color
Brown Shades, Yellow Shades
Leaf Color
Green Shades
Aggressiveness
Readily Seeds
Design Considerations
Container Friendly, Long Blooming, Showy Flowers
Other Considerations
Deer Tolerant
Duration
Annual, Biennial
Soil Type
Clay, Loam
Pests/Disease Prone
No
Hazards/Toxic
No City Data.

Notes

Flora of North America recognizes four varieties of R. hirta, all native to the U.S. Variety angustifolia is native to the southern states; variety hirta is native to the eastern states and floridana is only found in Florida. Our native variety pulcherrima, can is native throughout most of the U.S.