Allamanda Cathartica [VERIFIED]

Golden Trumpet, Allamanda cathartica - Wisconsin Horticulture

: 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

: 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 It lacks tendrils or aerial roots, so it

: Keep the soil consistently moist during the growing season but never waterlogged, as it is susceptible to root rot. It is sensitive to frost and should be

: 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

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