PlantsFlowers
Prairie Dock


Silphium terebinthinaceum
Chicago-region native. Suited to zone 6a.
Huge basal leaves and a tall yellow stalk
EasyFlowers
- Light
- Full sun
- Moisture
- Medium
- Mature size
- 6–10 ft
- Spacing
- 3 ft
- Bloom or harvest
- Flowers Jul–Sep
- How it spreads
- Deep taproot
- What to buy
- Young plants. You will not move a mature one.
- When to plant
- Plant May.
In the design
The leaves alone are waist-high. The flower stalk is a story. Don't plant it where you need a view.





