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Sawtooth Sunflower (Helianthus Grosseserratus)

Helianthus Grosseserratus, or more commonly know as Sawtooth Sunflower, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) with dark green foliage and yellow flowers of the genus Helianthus. It has a moderate growth rate and a height of 5 feet at maturity. Its duration is perennial which means it will grow year after year. It’s active growth period is spring summer fall, blooms during late summer and is intolerant of shade. Helianthus Grosseserratus or Sawtooth Sunflower‘s floral region is North America US Lower 48, specifically in the states of Arkansas, Connecticut, Delaware, Georgia, Iowa, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Virginia, Washington and Wisconsin.

       

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Sawtooth Sunflower (Helianthus Grosseserratus)
Credit: George F Mayfield from chicago area, USA | Helianthus grosseserratus SAWTOOTH SUNFLOWERUploaded by Epibase | License: CC-BY-SA-2.0
  • Sawtooth Sunflower (Helianthus Grosseserratus)

Sawtooth Sunflower (Helianthus Grosseserratus) Native Growing Regions

Native States for Sawtooth Sunflower (Helianthus Grosseserratus)
Arkansas, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, South Dakota, Tennessee, Texas, Virginia, Washington, Wisconsin

Sawtooth Sunflower (Helianthus Grosseserratus) Information

  • Category: Dicot
  • Genus: Helianthus
  • Family: Asteraceae
  • Order: Asterales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb
  • Native Status: L48 (N) CAN (I)
  • PLANTS Invasive Status: NE&GP
  • National Wetland Indicator Status: FAC FACW
  • Regional Wetland Indicator Status: 1(FACW) 2(FAC+) 3(FACW-) 4(FACW) 5(FACW) 6(FAC) 7(FAC*)
  • Active Growth Period: Spring Summer Fall
  • After Harvest Regrowth Rate: Slow
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: Medium
  • Coppice Potential: No
  • Fall Conspicuous: Yes
  • Fire Resistance: No
  • Flower Color: Yellow
  • Flower Conspicuous: Yes
  • Foliage Color: Dark Green
  • Foliage Porosity Summer: Moderate
  • Foliage Porosity Winter: Porous
  • Foliage Texture: Coarse
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: No
  • Growth Form: Rhizomatous
  • Growth Rate: Moderate
  • Height Mature (feet): 5
  • Leaf Retention: No
  • Lifespan: Moderate
  • 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: None
  • CaCO3 Tolerance: Medium
  • Cold Stratification Required: Yes
  • Drought Tolerance: Medium
  • Fertility Requirement: Medium
  • Fire Tolerance: Medium
  • Frost Free Days Minimum: 90
  • Hedge Tolerance: None
  • Moisture Use: Medium
  • pH (Minimum): 5.8
  • pH (Maximum): 7.3
  • Planting Density per Acre Minimum: 11000
  • Planting Density per Acre Maximum: 18000
  • Precipitation (Minimum): 20
  • Precipitation (Maximum): 40
  • Root Depth Minimum (inches): 12
  • Salinity Tolerance: None
  • Shade Tolerance: Intolerant
  • Temperature Minimum (°F): -43
  • 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: No
  • 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: 630000
  • Seed Spread Rate: Slow
  • Seedling Vigor: High
  • Small Grain: No
  • Vegetative Spread Rate: Moderate

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