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Thickstem Aster (Eurybia Integrifolia)

Eurybia Integrifolia, or more commonly know as Thickstem Aster, is a forb/herb subshrub with green foliage and purple flowers of the genus Eurybia. It has a rapid growth rate and a height of 3 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, is intolerant of shade and is routinely available commercially. Eurybia Integrifolia or Thickstem Aster‘s floral region is North America US Lower 48, specifically in the states of California, Idaho, Montana, Nevada, Oregon, Utah, Washington and Wyoming.

Thickstem Aster (Eurybia Integrifolia) Native Growing Regions

Native States for Thickstem Aster (Eurybia Integrifolia)
California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming

Thickstem Aster (Eurybia Integrifolia) Information

  • Category: Dicot
  • Genus: Eurybia
  • Family: Asteraceae
  • Order: Asterales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Forb/herb Subshrub
  • Native Status: L48 (N)
  • Active Growth Period: Spring and Summer
  • After Harvest Regrowth Rate: Rapid
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: High
  • 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: Coarse
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: No
  • Growth Form: Multiple Stem
  • Growth Rate: Rapid
  • Height Mature (feet): 3
  • Leaf Retention: No
  • Lifespan: Short
  • Low Growing Grass: No
  • Resprout Ability: No
  • Shape and Orientation: Erect
  • Toxicity: None
  • Adapted to Coarse Textured Soils: Yes
  • Adapted to Fine Textured Soils: No
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: None
  • CaCO3 Tolerance: High
  • Cold Stratification Required: No
  • Drought Tolerance: High
  • Fertility Requirement: Low
  • Fire Tolerance: High
  • Frost Free Days Minimum: 120
  • Hedge Tolerance: Medium
  • Moisture Use: Low
  • pH (Minimum): 6
  • pH (Maximum): 7.5
  • Precipitation (Minimum): 10
  • Precipitation (Maximum): 60
  • Root Depth Minimum (inches): 6
  • Salinity Tolerance: None
  • Shade Tolerance: Intolerant
  • Temperature Minimum (°F): -23
  • Bloom Period: Late Summer
  • Commercial Availability: No Known Source
  • Fruit/Seed Abundance: High
  • Fruit/Seed Period Begin: Summer
  • Fruit/Seed Period End: Fall
  • Fruit/Seed Persistence: No
  • 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: 880000
  • Seed Spread Rate: Rapid
  • Seedling Vigor: High
  • Small Grain: No
  • Vegetative Spread Rate: Moderate

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