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Spiny Hopsage (Grayia spinosa)

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Grayia Spinosa, or more commonly know as Spiny Hopsage, is a subshrub shrub with white-gray foliage and red flowers of the genus Grayia. It has a slow 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 fall winter and spring, blooms during late spring, is intolerant of shade and is routinely available commercially. Grayia Spinosa or Spiny Hopsage's floral region is North America US Lower 48, specifically in the states of Arizona, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington and Wyoming.

  • Category: Dicot
  • Genus: Grayia
  • Family: Chenopodiaceae
  • Order: Caryophyllales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Subshrub Shrub
  • Native Status: L48 (N)
  • Active Growth Period: Fall Winter and Spring
  • Allelopath: No
  • Bloat: None
  • C:N Ratio: High
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: Red
  • Flower Conspicuous: No
  • Foliage Color: White-Gray
  • Foliage Porosity Summer: Moderate
  • Foliage Porosity Winter: Moderate
  • Foliage Texture: Coarse
  • Fruit/Seed Color: White
  • Fruit/Seed Conspicuous: No
  • Growth Form: Multiple Stem
  • Growth Rate: Slow
  • Height at 20 Years Maximum (feet): 3
  • Height Mature (feet): 3
  • Leaf Retention: Yes
  • Lifespan: Long
  • Low Growing Grass: No
  • Resprout Ability: No
  • Shape and Orientation: Semi-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: High
  • Cold Stratification Required: Yes
  • Drought Tolerance: High
  • Fertility Requirement: Low
  • Fire Tolerance: Medium
  • Frost Free Days Minimum: 160
  • Hedge Tolerance: None
  • Moisture Use: Low
  • pH (Minimum): 6.5
  • pH (Maximum): 9
  • Planting Density per Acre Minimum: 700
  • Planting Density per Acre Maximum: 2200
  • Precipitation (Minimum): 8
  • Precipitation (Maximum): 12
  • Root Depth Minimum (inches): 20
  • Salinity Tolerance: High
  • Shade Tolerance: Intolerant
  • Temperature Minimum (°F): -33
  • Bloom Period: Late Spring
  • Commercial Availability: Contracting Only
  • Fruit/Seed Abundance: Medium
  • Fruit/Seed Period Begin: Summer
  • Fruit/Seed Period End: Summer
  • 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: 346991
  • Seed Spread Rate: Slow
  • Seedling Vigor: Low
  • Small Grain: No
  • Vegetative Spread Rate: None


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