A robust perennial with big bold basal leaves and tall stems which bear round sunflower-like yellow flowers in late summer. The foliage grows 24-36 in. tall, the flower stalks may reach 8 ft. or more. Seedheads attract finches and other songbirds. The foliage and flowers are excellent in flower arrangements.
Native Plant Database
Header Photo: Mervin Wallace
Prairie Dock
Silphium terebinthinaceum
Plant Type: Herbaceous Perennials
Native Environment: Glade
Season of Interest: Mid (May - June), Late (July - frost)
Main Color: Yellow
Fall Color:
Hardy From Zone:
Hardy To Zone:
?
Hardiness Zones
as defined by the USDA Plant Hardiness Zone Map; (hardiness zones are not recorded for all Grow Native! plants)
Sun Exposure
Full Sun
Soil
Moisture
Dry, Moderate
Nature Attracting
Wildlife Benefit
Food/Birds
Animal
Resistance
Size
Height:
2 to
3
feet
Spread:
3 to
feet
Size
Height: 2 to
3
feet
Spread: 3 to
feet
Size
Height: 2 to
3
feet
Spread: 3 to
feet
Typical Landscape Use
The large leaves provide excellent bold texture in perennial borders and native gardens.
Establishment and Care Instructions
Grow in full sun in moist or dry soil.
Special Features
Special Usage
Fresh Cut Flower, Dried Flower
Basic Description
Where Should I Start?
Check out the Grow Native! Committee’s Top Ten picks of native plants for a particular purpose.
What’s the Next Step?
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Where Can I Find This Plant in Nature?
Learn about the Native Environment(s) inhabited by the plants in this database.