Northern Wildflowers Prairie Dock Pkg.

Approximately 25 seeds per pack, covers 25 ft²

Prairie dock (Silphium terebinthinaceum) is just as desirable for its foliage as it is for its flowers. The plant has huge fan-like basal leaves that are a nice addition to the garden throughout the year. Then, in late summer, it sends up clusters of bright, yellow flowers on delicate stalks. The flowers are popular with bees, and the seeds are eaten by finches and other songbirds. Note, prairie dock can grow to be over 8 feet tall, and requires adequate space.

Height:  3-8 feet tall
Plant in:  Full Sun in Dry to Wet Site
Blooms:  August- September
Zone:  4-8

Wet and cold stratification is required. Mix seeds with moist substrate (vermiculite, perlite or moss) and place in a plastic bag and refrigerate for 6-8 weeks. Sow seed at 1/8 inch depth. Do not let seedlings dry out while it is establishing.

OR

Sow directly outdoors in late fall to overwinter.