How to Grow Allamanda cathartica Plants in your Garden

Gardener's HQ Guide to Growing Golden Trumpet

Golden trumpet

Allamanda cathartica (Yellow allamanda) photograph by Forest and Kim Starr.

Allamanda cathartica Growing and Care Guide

  • Scientific Name: Allamanda cathartica
  • Common Name: Golden trumpet
  • Growing Zone: USA: 9 to 11
  • Life Cycle / Plant Type: Vine, Shrub

Plant Details

  • Plant Height (Inches): 300 to 600
  • Plant Spread (Inches): 80 to 144
  • Time of Bloom: Mid summer to Mid fall
  • Flower Details: Yellow
  • Leaf Foliage: Green
  • Fruit:
  • Growth Form: Spreading or horizontal, Upright or erect, Variable spread

Ideal Growing Conditions

  • Best Light Conditions: Full sunlight
  • Rate of Growth: Quick
  • Suitable Soil Types: Adaptable, Clay, Loamy, Sandy, Well drained
  • Soil Moisture: Moist

Caring Conditions

  • Care:
  • Level of Maintenance:
  • Propagation: Seed or green wood cuttings
  • How to Prune: As a vigorous climber it is important to prune back flowers that occur on last years growth following flowering, while flowers on this years growth should be pruned towards the end of winter or in spring. Other than this no need to perform pruning except to keep plants tidy and confined.
  • Pests: CGlasshouse red spider mite and glasshouse whitefly
  • Diseases: scale, leafspot

Further Information

  • Can Attract:
  • Tolerant of: Heat, high humidity
  • Best Garden Use: Arbor, Container, Specimen
  • Family:
  • Closely Related Species:
  • Miscellaneous: Attractive foliage, Non-native to North America, Some parts are poisonous, Fragrant flowers, Blooms are very showy
  • Genus Detail: Allamanda
  • Further Reading and References: Here and Here

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