Silphium asteriscus

starry rosinweed

Asteraceae (Compositae)

wildlife plant

FNPS provides this link to assist users in finding sources for native plants. In doing so, FNPS is not attesting to the accuracy of any information on the FANN webite. Some members of FANN may provide services that do not further the FNPS mission, and this link should not be considered to be an endorsement of any specific nursery, services that it provides that do not support the FNPS mission, or the quality of its products or services.

Use this link to get more info about this plant from the USF Institute for Systematic Botany

Plant Specifics

Form: flower
Life Span: short-lived perennial
Size: Height: 2.0 to 5.0 ft    Width: 1.0 to 2.0 ft
Flower Color: flower color      yellow
Phenology: winter dormant
Noted for: Showy flowers


Recommended Uses: Wildflower garden.
Propagation: Starry rosinweed will readily self-seed if left to its own devices. Collecting seeds is a simple matter of removing the dead head flowers once they are thoroughly dried on the plant. Store the seeds at room temperature and plant in late winter or early spring. Seeds are available through the Florida Wildflowers Growers Cooperative. Silphium asteriscus also propagates by rhizome, so root cuttings are a possibility.
Availability: Native nurseries, FNPS plant sales, Specialty providers, Seed
Light: light requirement   light requirement  
Moisture Tolerance:
Salt Tolerance: Not salt tolerant
Soil or other substrate: Sand, loam
Soil pH Range: 5.1 to 7.6


wildlife plant  
Rosinweed has many pollinators including bees, and butterflies.
Native Habitats: Moist roadsides, flatwoods, sandhill, scrub.

Distribution and Planting Zones

Natural Range in Florida

USDA Zones:

USDA zones are based on minimum winter temperatures

Suitable to grow in:

Other Comments:

The flowers of starry rosinweed are long lived, while the bloom period is relatively long - lasting from early spring, well into fall.