Illinois Native Plant Guide - Prairie Dock - Pages 140-141
Illinois Native Plant Guide
Prairie Dock Silphium terebinthinaceum
Preferred Water Depth and Inundation Tolerance
Wet prairie or sedge meadow species. Species tolerates 0-6 inches of inundation
for short durations early in the season.
Palatable to grazing species. Attracts butterflies and other insects.
Used for upland slope buffer stabilization.
Availability, Establishment, and Maintenance
Easily propagated from seed.
To produce bare root transplants, sow seed 1/2 inch deep in late summer. Late
planting is necessary because of rapid growth of taproot and will produce
transplant stock in the fall or early the following spring.
On permanent sites, use transplants in the fall or early spring, or sow unstratified seed in the fall or stratified seed in the spring.