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Photos are representative and may not match your specific variety.
Prairie Dock
Native wildflower
Native wildflowerSilphium terebinthinaceum
- Full sun
- Zones 4–8
- 60 days to maturity
- Flowers
- 18" spacing
- Low water
- Perennial
Overview
Prairie Dock (Silphium terebinthinaceum) is a perennial native wildflower. Hardy in USDA zones 4 to 8. Prefers full sun.
Planting
Direct sow seeds in fall for natural stratification, or start indoors 6-8 weeks before last frost and transplant after last frost date
Growing
Sun: full. Water: low. Soil: Well-drained loam, slightly acidic to neutral, tolerates poor soil. Space plants 18" apart. Germination: 14-21 days.