Silphium terebinthinaceum - Prairie Dock

Silphium terebinthinaceum - Prairie Dock

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Prairie Dock is perhaps the tallest of the prairie composite reaching up to ten feet.

Its yellow flowers bloom mid summer and attract numerous pollinator and birds. Great seed source for fall migrating songbirds.

It grows form a tap root that can get quite large. Found in prairies from western Iowa through Ohio, North into Canada and South to Georgia.

What is Stratification?

Seed Info

Seed Envelopes contain approximately 0.02 ounces of seed and cover about 5 to 10 square feet. 

Product Details

Flower Color: Yellow

Height: 3 to 10 Feet

Light Requirements: Full Sun

Soil Hydrology: Mesic to Wet Soils

Bloom Time: July to September

Plant Type: Perennial

Stratification: Cold Moist (CM) 60 Days

Attracts: Bees, Butterflies, Birds

Product Code: SIL06F