Arkansas Native Plant Nursery › Silphium terebinthinaceum (Prairie Dock) Silphium terebinthinaceum (Prairie Dock) $64.00 sold out Silphium terebinthinaceumEasily grown in average, medium, well-drained soils in full sun. Tolerates poor soils. Silphium terebinthinaceumEasily grown in average, medium, well-drained soils in full sun. Tolerates poor soils. Sold Out Added!
