Blue Cohosh, Squaw Root, Papoose Root

Blue Cohosh, Squaw Root, Papoose Root

Caulophyllum thalictroides

This upright perennial bears green flowers in spring.

  • Green flowers are produced in spring, providing colour through the bloom season.
  • Upright clump, reaching 70 cm at maturity; divide every three to four years to maintain vigour.
  • Best in partial shade to full shade with moist, average, wet soil.
Size
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Plant Characteristics

Sunlight
Partial shade, Shade
Soil Moisture
Moist, Average, Wet
Hardiness Zone
3 – 3
Mature Height (meters)
0.45 – 0.7
Mature Spread (meters)
0.5 – 0.6
Growth Rate
Slow
Flower Colour
Green
Foliage Colour
Blue-green
Bloom Time
Spring
Habit
Upright
Deer Resistant
✓
Rabbit Resistant
✓
Attracts Birds
✓
Ontario Native
✓
Growing & Maintenance Tips
Best grown in a shady, woodland area in a rich, humusy, consistently moist soil. Slow to establish and best left undisturbed once mature.
Notes
Native to Ontario Foliage resembles that ofThalictrum(Meadow Rue), hence the species namethalictroides.

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