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Roughhairy Indigo (Indigofera Hirsuta)

Indigofera Hirsuta, or more commonly know as Roughhairy Indigo, is a subshrub forb/herb with green foliage and purple flowers of the genus Indigofera. It has a moderate growth rate and a height of 5 feet at maturity. Its duration is annual which means it grows for one season only. It’s active growth period is spring and summer, blooms during late summer, is intolerant of shade and is routinely available commercially. Indigofera Hirsuta or Roughhairy Indigo‘s floral region is North America US Lower 48 and Puerto Rico, specifically in the states of Alabama, Florida, Georgia and South Carolina.

Roughhairy Indigo (Indigofera Hirsuta) Native Growing Regions

Native States for Roughhairy Indigo (Indigofera Hirsuta)
Alabama, Florida, Georgia, South Carolina

Roughhairy Indigo (Indigofera Hirsuta) Information

  • Category: Dicot
  • Genus: Indigofera
  • Family: Fabaceae
  • Order: Fabales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Annual
  • Growth Habit: Subshrub Forb/herb
  • Native Status: L48 (I) PR (I)
  • Active Growth Period: Spring and Summer
  • After Harvest Regrowth Rate: Moderate
  • Allelopath: No
  • Bloat: Low
  • C:N Ratio: Low
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: Purple
  • Flower Conspicuous: Yes
  • Foliage Color: Green
  • Foliage Porosity Summer: Porous
  • Foliage Porosity Winter: Porous
  • Foliage Texture: Fine
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: No
  • Growth Form: Bunch
  • Growth Rate: Moderate
  • Height at 20 Years Maximum (feet): 5
  • Height Mature (feet): 5
  • Leaf Retention: No
  • Lifespan: Short
  • Low Growing Grass: No
  • Nitrogen Fixation: Medium
  • Resprout Ability: No
  • Shape and Orientation: Erect
  • Toxicity: None
  • Adapted to Coarse Textured Soils: No
  • Adapted to Fine Textured Soils: Yes
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: None
  • CaCO3 Tolerance: None
  • Cold Stratification Required: No
  • Drought Tolerance: Medium
  • Fertility Requirement: Low
  • Fire Tolerance: None
  • Frost Free Days Minimum: 110
  • Moisture Use: Medium
  • pH (Minimum): 6
  • pH (Maximum): 6.9
  • Precipitation (Minimum): 30
  • Precipitation (Maximum): 60
  • Root Depth Minimum (inches): 8
  • Salinity Tolerance: Low
  • Shade Tolerance: Intolerant
  • Temperature Minimum (°F): 17
  • Bloom Period: Late Summer
  • Commercial Availability: No Known Source
  • Fruit/Seed Abundance: Medium
  • Fruit/Seed Period Begin: Fall
  • Fruit/Seed Period End: Winter
  • Fruit/Seed Persistence: Yes
  • Propagated by Bare Root: No
  • Propagated by Bulbs: No
  • Propagated by Container: No
  • Propagated by Corms: No
  • Propagated by Cuttings: No
  • Propagated by Seed: Yes
  • Propagated by Sod: No
  • Propagated by Sprigs: No
  • Propagated by Tubers: No
  • Seed per Pound: 198080
  • Seed Spread Rate: Moderate
  • Seedling Vigor: Medium
  • Small Grain: No
  • Vegetative Spread Rate: None

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