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Blackeyed susan
Rudbeckia hirta
Asteraceae
 

Copyright by: Keith A. Bradley

General Landscape Uses: Wildflower gardens.

Availability: Native plant nurseries. Available in Groveland at Green Isle Gardens (321-436-4932).

Description: Medium short-lived herbaceous wildflower.

Dimensions: Typically 1-3 feet in height. Usually taller than broad.

Growth Rate: Moderate.

Range: Widespread in North America south to Miami-Dade and Collier counties, but very rare in Broward and either very rare or extirpated in the wild in Miami-Dade.

Map of select IRC data from peninsular Florida.

Habitats: Pinelands.

Soils: Moist to seasonally wet, moderately well-drained sandy or limestone soils, without humus.

Nutritional Requirements: Low; it grows in nutrient poor soils.

Salt Water Tolerance: Low; does not tolerate flooding by salt or brackish water.

Salt Wind Tolerance: Low; salt wind may burn the leaves.

Drought Tolerance: High; does not require any supplemental water once established.

Light Requirements: Full sun.

Flower Color: Yellow and brown.

Flower Characteristics: Showy.

Flowering Season: Summer-fall.

Fruit: Inconspicuous achene.

Horticultural Notes: Can be grown from seed.


Copyright by: Keith A. Bradley

Copyright by: Roger L. Hammer

Copyright by: Chuck McCartney

Copyright by: Susan Trammell

Copyright by: Susan Trammell

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Copyright by: Shirley Denton


Other data on Rudbeckia hirta available from:



 
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