Brunfelsia densifolia grows in USDA Zone 9-11 and can reach a mature height of 5-10 ft. Once established, it requires very little water and can tolerate periods of drought. When watering, they should be kept on the dry side as they don't appreciate being over-watered. It can survive short periods of cold as low as the 30s F for a short time, making it a very cold hardy plant.
Brunfelsia densifolia has very attractive, fragrant white or off-white flowers that alternate with yellow or orange flowers from year to year. This plant is relatively easy to care for and grows best in full sun to semi-shade. In cold regions, the plant is best grown in a container and brought in over winter to prevent leaf damage from cold. When caring for Brunfelsia densifolia in container, water regularly but maintain a soil that drains well. Feed your serpentine hill rain tree with a balanced fertilizer formula every two months during the growing season and once a year in winter. Prune any damaged branches in the spring, and deadhead spent flowers to encourage new bloom.