Allamanda Cathartica -
Golden Trumpet, Allamanda cathartica - Wisconsin Horticulture
: The leaves are glossy, leathery, and dark green, typically arranged in whorls of 3 or 4 along the stems.
: Needs at least 6 hours of direct sunlight daily for maximum blooming. Soil : Prefers rich, well-draining, slightly acidic soil. allamanda cathartica
: 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.
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 : Produces trumpet-shaped, bright yellow blossoms that can
: Feed every 2–4 weeks during spring and summer with a balanced or high-phosphorus fertilizer to encourage flowers.
: While naturally a sprawling woody climber that can reach 15–20 feet in length, it can be pruned into a compact shrub or hedge. It lacks tendrils or aerial roots, so it must be physically tied to supports like trellises or fences. Essential Care Guide Native to South America, it has become a
To thrive, Allamanda cathartica requires conditions that mimic its native tropical habitat:
