: Keep the soil consistently moist during the growing season but never waterlogged, as it is susceptible to root rot.
: 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
To thrive, Allamanda cathartica requires conditions that mimic its native tropical habitat: : Keep the soil consistently moist during the
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 It lacks tendrils or aerial roots, so it
: 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
Golden Trumpet, Allamanda cathartica - Wisconsin Horticulture
: Feed every 2–4 weeks during spring and summer with a balanced or high-phosphorus fertilizer to encourage flowers.