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American Water-Willow (Justicia americana)

American Water-Willow (Justicia Americana) http://www.sagebud.com/american-water-willow-justicia-americana
Credit: Mike Cline | Own work | License: CC-BY-SA-2.5,2.0,1.0 CC-BY-SA-3.0-migrated GFDL
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Justicia Americana, or more commonly know as American Water-Willow, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with dark green foliage and white flowers of the genus Justicia. It has a rapid 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, blooms during late spring and is tolerant of shade. Justicia Americana or American Water-Willow's floral region is North America US Lower 48, specifically in the states of Alabama, Arkansas, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kentucky, Louisiana, Maryland, Michigan, Missouri, Mississippi, North Carolina, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Vermont and Wisconsin.

  • Category: Dicot
  • Genus: Justicia
  • Family: Acanthaceae
  • Order: Scrophulariales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb
  • Native Status: L48 (N) CAN (N)
  • State T/E Status: IA (E) MI (T)
  • State T/E Common Name: IA (water-willow) MI (water-willow)
  • National Wetland Indicator Status: OBL
  • Regional Wetland Indicator Status: 1(OBL) 2(OBL) 3(OBL) 5(OBL) 6(OBL)
  • Active Growth Period: Spring
  • Allelopath: No
  • C:N Ratio: Medium
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: White
  • Flower Conspicuous: Yes
  • Foliage Color: Dark Green
  • Foliage Texture: Fine
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: No
  • Growth Form: Rhizomatous
  • Growth Rate: Rapid
  • Height Mature (feet): 2.5
  • Leaf Retention: No
  • Low Growing Grass: No
  • Resprout Ability: No
  • Shape and Orientation: Erect
  • Toxicity: None
  • Adapted to Coarse Textured Soils: Yes
  • Adapted to Fine Textured Soils: Yes
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: High
  • CaCO3 Tolerance: Medium
  • Cold Stratification Required: No
  • Drought Tolerance: Low
  • Fertility Requirement: Low
  • Fire Tolerance: Low
  • Frost Free Days Minimum: 140
  • Hedge Tolerance: None
  • Moisture Use: Medium
  • pH (Minimum): 5.4
  • pH (Maximum): 7.6
  • Planting Density per Acre Minimum: 3450
  • Planting Density per Acre Maximum: 10912
  • Precipitation (Minimum): 35
  • Precipitation (Maximum): 60
  • Root Depth Minimum (inches): 10
  • Salinity Tolerance: None
  • Shade Tolerance: Tolerant
  • Temperature Minimum (°F): -28
  • Bloom Period: Late Spring
  • Commercial Availability: Routinely Available
  • Fruit/Seed Abundance: Medium
  • Fruit/Seed Period Begin: Spring
  • Fruit/Seed Period End: Fall
  • Fruit/Seed Persistence: No
  • Propagated by Bare Root: Yes
  • Propagated by Bulbs: No
  • Propagated by Container: No
  • Propagated by Corms: No
  • Propagated by Cuttings: No
  • Propagated by Seed: No
  • Propagated by Sod: No
  • Propagated by Sprigs: No
  • Propagated by Tubers: No
  • Seed per Pound: 350000
  • Seed Spread Rate: Moderate
  • Seedling Vigor: High
  • Small Grain: No
  • Vegetative Spread Rate: Rapid




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