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

Silphium terebinthinaceum

Prairie Dock

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Silphium terebinthinaceum (Prairie Dock)

In late summer, this robust perennial blooms with sunflower-like yellow flowers on eigh foot tall stalks. The big, bold, basal leaves grow 24-36 inches tall and make this a worthy addition to the landscape even without the summer blooms. The foliage and flowers are wonderful for arrangements while the seedheads attract finches and other songbirds.

Additional Information:


Height
2-3 Feet

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Spread
3- Feet

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Bloom/Seasonal Color
Medium Yellow


USDA Hardiness Zone 4-8

Home Owner Growing and Maintenance Tips:

Good Companions
Prairie Blazing Star (Liatris pycnostachya), Rough Blazing Star (Liatris aspera), Aromatic Aster (Symphyotrichum oblongifolium), Little Bluestem (Schizachyrium scoparium), Switch Grass (Panicum virgatum), Butterfly Milkweed (Asclepias tuberosa)

Characteristics & Attributes

Hydrologic Designation

FACU

Nature Attracting

Songbird

Season of Interest

Late (July-frost)
Mid (May-June)

Soil Moisture

Average
Moderate

Special Uses

Dried Flower
Fresh Cut Flower

Sun Exposure

Full Sun

USFS MO Ecological Map

Wildlife Benefit

Food/Birds