Home Prairie and Wetland Center
16245 South Hwy. 71
Belton, MO 64012
Tel: (816) 331-9738
Fax: (816) 331-9739

Silphium integrifolium

Rosinweed

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Silphium integrifolium (Rosinweed)

The shortest of all Silphiums, Rosinweed has textured leaves that have the feel of sandpaper. In July to August, clusters of yellow flowers bloom atop stems. The seed is enjoyed by birds.


Height
48-72 Inches

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Spread
16-24 Inches

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Bloom/Seasonal Color
Medium Yellow


USDA Hardiness Zone 3-9

Good Companions
Slender Mountain Mint (Pycnanthemum tenuifolium (flexuosum)), Prairie Blazing Star (Liatris pycnostachya), Tall Larkspur (Delphinium exaltatum), Sideoats Grama (Bouteloua curtipendula), Little Bluestem (Schizachyrium scoparium)

Characteristics & Attributes

Hydrologic Designation

UPL

Nature Attracting

Songbird

Season of Interest

Late (July-frost)

Soil Moisture

Moderate
Average

Sun Exposure

Full Sun

USFS MO Ecological Map

Wildlife Benefit

Food/Birds