: Feed every 2–4 weeks during spring and summer with a balanced or high-phosphorus fertilizer to encourage flowers.
: 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 allamanda cathartica
Golden Trumpet, Allamanda cathartica - Wisconsin Horticulture : Feed every 2–4 weeks during spring and