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PlantSnap
Plant Care
Golden trumpet
(Allamanda cathartica)
Also Known As
Golden trumpet, Buttercup vine, Allamanda
About This Plant
Allamanda cathartica is a tropical plant species that produces beautiful yellow trumpet-shaped flowers with glossy green leaves. It is a popular ornamental plant due to its vibrant flowers and attractive foliage.
Plant Care Instructions
Outdoor Size Range
6-10 feet (1.8-3.0 m)
Light Requirements
Allamanda cathartica requires full sun to partial shade. It grows best in bright, indirect light.
Humidity Needs
Allamanda cathartica prefers high humidity levels. A humidifier or regular misting can help maintain the required humidity levels.
Fertilizing Schedule
Allamanda cathartica requires regular fertilization during the growing season. A balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium can be used every 2-3 weeks.
Pruning Guidelines
Pruning is required to maintain the shape of the plant and promote new growth. Deadheading spent flowers can also encourage new blooms.
Common Pests and Diseases
Common pests for Allamanda cathartica include spider mites, mealybugs, and whiteflies. It is also susceptible to root rot if overwatered.
Indoor Size Range
36-48 inches (91-122 cm)
Watering Schedule
This plant species requires moderate watering. The soil should be kept moist, but not waterlogged. Watering frequency may vary depending on the climate and environment.
Temperature Range
This plant species prefers warm temperatures between 60-80°F (15-27°C). It cannot tolerate frost or cold temperatures.
Growing Season
Allamanda cathartica blooms from late spring to early fall. It requires warm temperatures and high humidity levels to thrive.
Growing Difficulty Level
Allamanda cathartica is moderately difficult to grow. It requires specific environmental conditions and regular maintenance.
USDA Hardiness Zones
Allamanda cathartica is hardy in USDA zones 10-11.
Did You Know?
Allamanda cathartica is native to South America and is the national flower of Guyana.
