Genus of about 40 species of evergreen shrubs and small trees from light woodland and thickets in tropical North, Central, and South America. Brunfelsia is a slow-growing evergreen shrub with an unusual common name - Yesterday, Today and Tomorrow. It describes the changing flower colours - yesterday's purple, today's pale violet and tomorrow's white. These are evergreen, flowering shrubs found in tropical America. They are grown outside in southern Florida and California. They can be grown inside greenhouses where outdoor climates aren't suitable.