Rudbeckia hirta

Photo by Marjorie Shropshire. Photograph belongs to the photographer who allows use for FNPS purposes only. Please contact the photographer for all other uses.

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 10B 8A 8B 9A 9B 

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Black-eyed Susan


Plant Specifics

Size:2-3 ft tall by 1-2 ft wide
Life Span:Short-lived perennial
Flower Color:Yellow
Fruit Color:Brown
Phenology:Blooms spring-fall.
Habitats:Predominantly ruderal.  Roadsides and waste places.


Recommended Uses:Wildflower gardens, roadside wildflowers, meadows.
Light: Full Sun
Moisture Tolerance:
always floodedextremely dry
Moisture Tolerance: Somewhat moist, no flooding ----- to ----- Very long very dry periods
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray Tolerance:Low/no tolerance of salty wind or direct salt spray



Seeds eaten by small birds such as finches.

Attracts bumble bees, butterflies

Larval host for the silvery checkerspot, found only in extreme north Florida.