Allamanda Cathartica May 2026

: 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

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

Golden Trumpet, Allamanda cathartica - Wisconsin Horticulture : Hardy in USDA Zones 10–11

: The leaves are glossy, leathery, and dark green, typically arranged in whorls of 3 or 4 along the stems. and dark green

: Needs at least 6 hours of direct sunlight daily for maximum blooming. Soil : Prefers rich, well-draining, slightly acidic soil.