Pterocarpus indicus Flowering Time

Time to First Flowering (Blooming)

  • Typically: 5 to 8 years after planting
  • Under ideal conditions (good soil, full sun, proper care): as early as 4–5 years
  • From direct seeding vs nursery-grown seedlings:
    • Nursery-grown (transplanted): slightly faster, more uniform flowering
    • Direct seeding: may take longer and be less consistent

Flowering Characteristics

  • Season: Usually blooms during the dry season (around late summer in the Philippines)
  • Pattern: Not always heavy flowering every year in early stages
  • Maturity effect: More abundant flowering once the tree reaches 10+ years

Factors That Influence Early Blooming

  • Full sunlight exposure
  • Proper spacing (avoid overcrowding)
  • Balanced nutrition (especially phosphorus)
  • Minimal stress (waterlogging or drought delays flowering)

Agroforestry Insight

In your plantation model:

  • Narra functions more as a long-term canopy and timber asset
  • Flowering is not the primary economic driver, but it contributes to:
    • Pollinator support
    • Landscape/aesthetic value
    • Seed production for propagation