Prairie dock (Silphium terebinthinaceum)

The very large, vertical leaves (blade up to 3 dm broad on long petioles) make this a plant recognizable from a distance even without the tall (at least to 3.5 m) stem with large heads. The large woody taproot is likewise impressive.

Shade Tolerance: Full to part Sun

Moisture: Dry to Moist

Soils: Sand, loam, clay

Height: 3-10 ft.

Bloom Time: July - Sept.

Color: Yellow

Deer Resistant: Yes

Uses: Butterflies, Pollinators

Other: Long taproot

MichiganFlora Plant Profile