Cestrum parqui, commonly known as the green cestrum, is a flowering shrub native to South America. It typically grows between 3 to 6 feet tall and features slender, arching branches. The plant produces small, tubular flowers that are usually yellow or greenish in color, attracting various pollinators. This species thrives in well-drained soils and prefers full sun to partial shade. While it is often used in gardens for its ornamental value, Cestrum parqui is considered invasive in some regions, as it can spread rapidly and outcompete native vegetation.