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

: 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 : Feed every 2–4 weeks during spring and

: Keep the soil consistently moist during the growing season but never waterlogged, as it is susceptible to root rot. Propagation and Maintenance : Keep the soil consistently

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:

: 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