Allamanda cathartica, commonly known as Golden Trumpet, Yellow Allamanda, or Buttercup Flower, is a popular tropical plant known for its large, bright yellow flowers and glossy green foliage. Here’s a detailed guide on growing and caring for Allamanda cathartica:
- Appearance: Allamanda cathartica is an evergreen shrub or vine that can grow up to 10-15 feet tall, depending on the support it receives. It has dark green, leathery leaves and produces clusters of large, trumpet-shaped yellow flowers.
- Flowers: The flowers are about 3-4 inches in diameter, with five petals, and bloom profusely from spring to fall.
- Foliage: The leaves are opposite or whorled, lance-shaped, and glossy.
Growing Conditions
- Climate: Allamanda cathartica thrives in warm, tropical, and subtropical climates. It prefers temperatures between 20-35°C (68-95°F) and is not frost-tolerant.
- Soil: Prefers well-drained, fertile soil with a slightly acidic to neutral pH. Adding organic matter or compost to the soil can enhance fertility.
- Sunlight: Requires full sun for optimal growth and flowering. It can tolerate partial shade but may not bloom as profusely.
- Watering: Needs regular watering, especially during the growing season. Keep the soil consistently moist but not waterlogged. Reduce watering in the winter months.
