Plants!


Blue Cohosh (Caulophyllum thalictroides)

  • Blue Cohosh (Caulophyllum Thalictroides) https://www.sagebud.com/blue-cohosh-caulophyllum-thalictroides/
    Credit: carol | carol | License: CC-BY-SA-1.0 CC-BY-SA-3.0-migrated-with-disclaimers GFDL-en
  • Blue Cohosh (Caulophyllum Thalictroides) https://www.sagebud.com/blue-cohosh-caulophyllum-thalictroides/
    Credit: Britton, N.L., and A. Brown | USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 128. Edited by User:Earthdirt | License: PD Old
CATH2.jpg

Caulophyllum Thalictroides, or more commonly know as Blue Cohosh, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with green foliage and purple flowers of the genus Caulophyllum. It has a moderate growth rate and a height of 2.5 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during mid summer, is tolerant of shade and is routinely available commercially. Caulophyllum Thalictroides or Blue Cohosh's floral region is North America US Lower 48, specifically in the states of Alabama, Arkansas, Connecticut, Delaware, Georgia, Iowa, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Virginia, Vermont and Wisconsin.

  • Category: Dicot
  • Genus: Caulophyllum
  • Family: Berberidaceae
  • Order: Ranunculales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb
  • Native Status: L48 (N) CAN (N)
  • State T/E Status: RI (T)
  • State T/E Common Name: RI (blue cohosh)
  • Active Growth Period: Spring and Summer
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: Medium
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: Purple
  • Flower Conspicuous: No
  • Foliage Color: Green
  • Foliage Porosity Summer: Porous
  • Foliage Porosity Winter: Porous
  • Foliage Texture: Medium
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: Yes
  • Growth Form: Multiple Stem
  • Growth Rate: Moderate
  • Height at 20 Years Maximum (feet): 2
  • Height Mature (feet): 2.5
  • Leaf Retention: No
  • Lifespan: Moderate
  • Low Growing Grass: No
  • Resprout Ability: No
  • Shape and Orientation: Erect
  • Toxicity: None
  • Adapted to Coarse Textured Soils: No
  • Adapted to Fine Textured Soils: No
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: Low
  • CaCO3 Tolerance: Low
  • Cold Stratification Required: Yes
  • Drought Tolerance: Low
  • Fertility Requirement: High
  • Fire Tolerance: Low
  • Frost Free Days Minimum: 120
  • Hedge Tolerance: None
  • Moisture Use: Medium
  • pH (Minimum): 4.5
  • pH (Maximum): 7
  • Planting Density per Acre Minimum: 4800
  • Planting Density per Acre Maximum: 11000
  • Precipitation (Minimum): 35
  • Precipitation (Maximum): 60
  • Root Depth Minimum (inches): 16
  • Salinity Tolerance: None
  • Shade Tolerance: Tolerant
  • Temperature Minimum (°F): -33
  • Bloom Period: Mid Summer
  • Commercial Availability: No Known Source
  • Fruit/Seed Abundance: Low
  • Fruit/Seed Period Begin: Spring
  • Fruit/Seed Period End: Summer
  • Fruit/Seed Persistence: No
  • Propagated by Bare Root: Yes
  • Propagated by Bulbs: No
  • Propagated by Container: Yes
  • Propagated by Corms: Yes
  • Propagated by Cuttings: No
  • Propagated by Seed: No
  • Propagated by Sod: No
  • Propagated by Sprigs: Yes
  • Propagated by Tubers: No
  • Seed Spread Rate: Slow
  • Seedling Vigor: Low
  • Small Grain: No
  • Vegetative Spread Rate: None





Browse Plants by State

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming