Allamanda commonly called Buttercup or Golden Trumpet originated in Brazil and comes from the Apocynaceae family.
Allamanda was named after Frédéric-Louis Allamand a Swiss Botanist who collected the seeds from South America and sent them to his countryman Carl Linnaeus in 1770.
Allamanda cathartica is a showy, robust, compact shrub with long leathery, glossy leaves and large wax-like, trumpet-shaped flowers. It is one of the showiest bloomers in an outdoor garden.
It can grow as a climber if you have the space for it; you will need a good supporting trellis or arch for this. However, if space is limited and you would like to grow it as a shrub it can be controlled by regular pruning.
Allamanda contains a white latex (milky sap) that has caused skin irritation so avoid getting the