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Prairie Dock

Silphium terebinthinaceum

  • Sunflower-like yellow flowers in loose clusters of upper plant
  • Large, wide, spade-shaped basal leaves
  • Upright clumping habit
  • Drought-tolerant
  • Bloom Time: July to September
  • Flower Size: 5-7 cm

ZONE:
4

COLOUR:
Yellow

HEIGHT:
120-270 cm

SPREAD:
60-150 cm

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Growing and Maintenance Tips:

 Tolerant of poor soils, it is easily grown in an average, medium, well-drained soil, in full sun. 

Additional Notes about Prairie Dock:

Native to Ontario

Characteristics & Attributes

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Native to Ontario
Native to Ontario
Drought Tolerant
Drought Tolerant
SOIL MOISTURE:
Average to Dry Soils
Moist to Average
Well-drained
ATTRACTS WILDLIFE:
Attracts Pollinators
GROWTH RATE:
Medium
FLOWERING TIME:
Summer
Lt. Sum-Fall
HABIT:
Clumping
FOLIAGE COLOR:
Green
LANDSCAPE USES:
Naturalizing
Roadside planting