Also known as yellow bells, hardy yellow trumpet, or yellow alder, the tropical esperanza is easily recognized by its large masses of lightly scented, golden-yellow, trumpet-shaped flowers amid the dark green foliage. It is native to Texas and found growing wild on rocky slopes near San Antonio and in the Trans-Pecos region and blooms from spring through fall. While esperanza perennials are grown in the landscape as shrubs or container plants for their beauty, they were once quite popular for their medicinal use as well.
Esperanza needs to be grown in warm conditions; preferably in full sun though afternoon shade is suitable as well. While esperanza can tolerate a wide range of soil conditions, it’s preferable they be given fertile, well-draining soil. Therefore, any poor soil should be amended with compost to improve its overall health and drainage. Esperanza is extremely heat and drought tolerant.