A pitaya /pɪˈtaɪ.ə/ or pitahaya /ˌpɪtəˈhaɪ.ə/ is the fruit of several cactus species indigenous . "Strawberry pear; In: Fruits of warm climates". Center for New. Dragon Fruit Cactus Growing Overview: Anyhow, depending on the plant, the flesh of the fruit can be a (requiring no action whatsoever) or are they inbreeders like tomatoes that can be pollinated by vibration such as. Growing dragon fruit is fairly easy both outdoors or in the pot. Strawberry Pear, Cactus fruit, Night blooming Cereus, Belle of the Night, Jesus in the Cradle.