Selenicereus megalanthus, commonly known as Yellow Dragon Fruit, is an evergreen climbing cactus native to tropical forests in northern South America. It is renowned for its large, showy, nocturnal, and fragrant flowers, which are among the largest of all cactus species, and its sweet yellow fruit. The plant can reach substantial sizes, with stems that may lie along the ground (procumbent), climb (scandent), or hang (pendent). The flowers are white and funnel-shaped, blooming from June to October. The ovoid fruit is notable for its yellow skin and spiny exterior, with a pleasant, mildly sweet flavor. Yellow Dragon Fruit is self-fertile, making it a popular choice for commercial fruit production as well as ornamental use.

Yellow Dragon Fruit is valued for its ornamental appearance, particularly its impressive flowers and unique fruit. It is often grown on trellises or fences in tropical and subtropical gardens and can be cultivated indoors in cooler climates. The plant requires a compost rich in humus, consistent moisture during the growing season, and protection from temperatures below 8 °C (46.5 °F) in winter. While it can tolerate semi-shade, full sunlight is preferable to stimulate budding in early spring. It is generally low-maintenance, but growers should be aware of potential pests such as scale insects and mealybugs.CC BY-SA 4.0