Grow Your Garden


Violet Tree (Polygala cowellii)

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Polygala Cowellii, or more commonly know as Violet Tree, is a tree with yellow-green foliage and purple flowers of the genus Polygala. It has a slow growth rate and a height of 15 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is fall and blooms during spring. Polygala Cowellii or Violet Tree's floral region is Puerto Rico.

  • Category: Dicot
  • Genus: Polygala
  • Family: Polygalaceae
  • Order: Polygalales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Tree
  • Native Status: PR (N)
  • Active Growth Period: Fall
  • After Harvest Regrowth Rate: None
  • Allelopath: No
  • Bloat: None
  • Coppice Potential: No
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: Purple
  • Flower Conspicuous: Yes
  • Foliage Color: Yellow-Green
  • Foliage Porosity Summer: Moderate
  • Foliage Porosity Winter: Porous
  • Foliage Texture: Medium
  • Fruit/Seed Color: Brown
  • Fruit/Seed Conspicuous: Yes
  • Growth Rate: Slow
  • Height at 20 Years Maximum (feet): 65
  • Height Mature (feet): 15
  • Leaf Retention: No
  • Low Growing Grass: No
  • Resprout Ability: No
  • Adapted to Coarse Textured Soils: Yes
  • Adapted to Fine Textured Soils: No
  • Adapted to Medium Textured Soils: Yes
  • CaCO3 Tolerance: Medium
  • Cold Stratification Required: No
  • Fertility Requirement: Medium
  • Fire Tolerance: Medium
  • Frost Free Days Minimum: 365
  • Hedge Tolerance: Low
  • Planting Density per Acre Minimum: 320
  • Planting Density per Acre Maximum: 640
  • Root Depth Minimum (inches): 36
  • Temperature Minimum (°F): 40
  • Bloom Period: Spring
  • Fruit/Seed Period Begin: Spring
  • Fruit/Seed Period End: Spring
  • 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
  • Small Grain: No




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