This weird tropical cactus gets mixed reviews. Pitahaya fruit, or dragon fruit, is abundant in favorable conditions, but develops potentially bland flavor. The green succulent stems may be vigorous, but develop distinctly pendulous form that resembles Sigmund the sea monster. Bloom lasts from summer to autumn, but individual flowers open for just a night.
Selenicereus undatas is the most popular pitahaya. Its fruit weighs between half a pound and a pound, and has white flesh. Selenicereus costaricensis fruit is similar, but with red flesh, and perhaps slightly more flavor. Selenicereus megalanthus fruit is smaller, thorny and yellow, with white flesh and richer flavor. Home grown fruit is superior to market fruit.
Pitahaya grows very easily from cuttings or pruning scraps. Young stems climb with wiry aerial roots, so need substantial support. Fruiting stems hang downward from the tops of such support. Most modern cultivars need no pollinator. Some old cultivars need another of its same species for pollination. Pitahaya is vulnerable to frost where winters are cool.