: Feed every 2–4 weeks during spring and summer with a balanced or high-phosphorus fertilizer to encourage flowers.
: Keep the soil consistently moist during the growing season but never waterlogged, as it is susceptible to root rot. allamanda cathartica
To thrive, Allamanda cathartica requires conditions that mimic its native tropical habitat: : Feed every 2–4 weeks during spring and
: 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. feature reddish-brown buds.