Allamanda Cathartica May 2026

Allamanda cathartica , most commonly known as the , is a vigorous evergreen tropical vine or shrub prized for its large, flamboyant yellow flowers. Native to South America, it has become a staple in tropical landscapes worldwide due to its rapid growth and year-round blooming in warm climates. Physical Characteristics

To thrive, Allamanda cathartica requires conditions that mimic its native tropical habitat:

: Hardy in USDA Zones 10–11 . It is sensitive to frost and should be brought indoors or into a greenhouse if temperatures drop below 60°F (15°C). Propagation and Maintenance allamanda cathartica

: Feed every 2–4 weeks during spring and summer with a balanced or high-phosphorus fertilizer to encourage flowers.

Golden Trumpet, Allamanda cathartica - Wisconsin Horticulture Allamanda cathartica , most commonly known as the

: Needs at least 6 hours of direct sunlight daily for maximum blooming. Soil : Prefers rich, well-draining, slightly acidic soil.

: The leaves are glossy, leathery, and dark green, typically arranged in whorls of 3 or 4 along the stems. It is sensitive to frost and should be

: Produces trumpet-shaped, bright yellow blossoms that can reach up to 5 inches (12.5 cm) in diameter. Some varieties, like 'Hendersonii', feature reddish-brown buds.