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Starry rosinweed
Silphium asteriscus
Asteraceae
 

Copyright by: George D. Gann, 2017
In cultivation by Green Isle Gardens, Florida

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations. Also wildflower gardens.

Availability: Widely available in central Florida. Available at native plant nurseries in northeast and South Florida. Available in Lake Worth at Amelia's SmartyPlants (561-540-6296) and in Boynton Beach at Sustainscape (561-245-5305).

Description: Perennial herb up to 3 feet tall with a course stem and leaves. Showy yellow flowers.

Dimensions: Stems up to 3 feet in height.

Growth Rate: Moderate.

Range: Eastern and southern United States south through the Florida Panhandle and along the west coast of Florida to Lee county.

Plant Map Map of select IRC data from peninsular Florida.

 Map of suggested ZIP codes from South Florida north to southern Brevard, Osceola, Polk, and Pasco counties.

Habitats: Flatwoods.

Soils: Moist to dry, well-drained sandy soils, without humus.

Salt Water Tolerance: Low; does not tolerate long-term 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 to light shade.

Flower Color: Yellow.

Flower Characteristics: Showy.

Flowering Season: Spring-fall.

Wildlife and Ecology: Attracts native bees and other beneficial insects.

References: Wunderlin and Hansen (2011), Taylor (1998

Comments: We have been adding data for this species for central and northern Florida and welcome any feedback or review. If you would like to contribute information or images, please contact George Gann via the IRC staff page. See also the Florida Wildflower Foundation's Flower Friday page.


Copyright by: George D. Gann, 2017
In cultivation by Green Isle Gardens, Florida

Copyright by: USF Herbarium (Kunzer 995 USF).

Copyright by: Lilly Anderson-Messec via her Instagram account @lilliumbyrd.

Copyright by: Lilly Anderson-Messec via her Instagram account @lilliumbyrd.


Other data on Silphium asteriscus available from:



 
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