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Jesuit's Bark (Iva frutescens)

  • Jesuit's Bark (Iva Frutescens) http://www.sagebud.com/jesuits-bark-iva-frutescens/
    Credit: NRCS National Wetland Team, Fort Worth, TX. | Wetland flora: Field office illustrated guide to plant species. Provided by NRCS National Wetland Team, Fort Worth, TX.. | License: PD USDA NRCS
  • Jesuit's Bark (Iva Frutescens) http://www.sagebud.com/jesuits-bark-iva-frutescens/
    Credit: Britton, N.L., and A. Brown | An illustrated flora of the northern United States, Canada and the British Possessions. Courtesy of Kentucky Native Plant Society. | License: PD USDA NRCS
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Iva Frutescens, or more commonly know as Jesuit's Bark, is a subshrub forb/herb with green foliage and white flowers of the genus Iva. It has a moderate growth rate and a height of 9 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 late summer and is intolerant of shade. Iva Frutescens or Jesuit's Bark's floral region is North America US Lower 48, specifically in the states of Alabama, Connecticut, Delaware, Florida, Georgia, Louisiana, Massachusetts, Maryland, Maine, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, South Carolina, Texas and Virginia.

  • Category: Dicot
  • Genus: Iva
  • Family: Asteraceae
  • Order: Asterales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Subshrub Forb/herb
  • Native Status: L48 (N) CAN (N)
  • State T/E Status: ME (E)
  • State T/E Common Name: ME (marsh-elder)
  • National Wetland Indicator Status: FACW FACW+
  • Regional Wetland Indicator Status: 1(FACW+) 2(FACW+) 6(FACW)
  • Active Growth Period: Spring and Summer
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: High
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: White
  • Flower Conspicuous: Yes
  • Foliage Color: Green
  • Foliage Porosity Summer: Dense
  • Foliage Porosity Winter: Moderate
  • Foliage Texture: Coarse
  • Fruit/Seed Color: White
  • Fruit/Seed Conspicuous: No
  • Growth Form: Multiple Stem
  • Growth Rate: Moderate
  • Height at 20 Years Maximum (feet): 9
  • Height Mature (feet): 9
  • Leaf Retention: No
  • Lifespan: Long
  • Low Growing Grass: No
  • Resprout Ability: Yes
  • Shape and Orientation: Vase
  • 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: Medium
  • Frost Free Days Minimum: 200
  • Hedge Tolerance: Medium
  • Moisture Use: High
  • pH (Minimum): 5
  • pH (Maximum): 5.7
  • Planting Density per Acre Minimum: 1200
  • Planting Density per Acre Maximum: 2700
  • Precipitation (Minimum): 35
  • Precipitation (Maximum): 65
  • Root Depth Minimum (inches): 16
  • Salinity Tolerance: High
  • Shade Tolerance: Intolerant
  • Temperature Minimum (°F): 2
  • Bloom Period: Late Summer
  • Commercial Availability: Routinely Available
  • Fruit/Seed Abundance: High
  • Fruit/Seed Period Begin: Summer
  • Fruit/Seed Period End: Fall
  • Fruit/Seed Persistence: Yes
  • Propagated by Bare Root: Yes
  • Propagated by Bulbs: No
  • Propagated by Container: Yes
  • 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: 800000
  • Seed Spread Rate: Moderate
  • Seedling Vigor: Low
  • Small Grain: No
  • Vegetative Spread Rate: None


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