Grow Zones: 9,10,11 (Otherwise indoors, away from frost) Other Names: Giant Dragonfruit, Hylocereus megalanthus, Pitghaya Amarillo, Yellow Pitaya, Yellow Dragon Fruit, Strawberry Pear Hylocereus dragonfruit is an exotic climbing fruiting cactus that boasts large fragrant flowers (the flowers open a couple of times at night) and deliciously sweet yellow fruits. This yellow variety is known to be the sweetest tasting of all the dragon-fruits. Grows well in subtropical to tropical climates and is native to South America however has been grown in other countries with the proper climate for many years now. This fruiting cactus can reach heights up to 15 ft tall.