Silphium terebinthinaceum

Common name: Prairie Dock

Native plant

Prairie Dock has a tall central stalk that ends in sprawling flowering branches.  It has large yellow, sunflower-like blooms that occur late summer to early fall and last about a month.  It has dramatic, attractive clumps of basal leaves that are dark green, heart-shaped and nearly 2 feet long and 1 foot wide.  It is slow to establish but very long lived.  Its flowers attract a number of pollinators, and its seeds are a food source for many small birds.


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Pricing information for
Per unit for pint growing method $4
Flats $45

Plant Details

Plant type


Soil type

Dry Mesic, Mesic, Moist Mesic

Light exposure

Full Sun

Bloom period



Lightly compacted soils, Harsh exposure tolerant, Road-side/salt tolerant

General information

Mature height
3 Feet
Mature width
3 Feet
Max height
10 Feet
Max width
6 Feet
Growth rate
Flower color
Fall color

Additional information

Butterfly host plant Loved by birds Pollinator hot spot

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