The fruits produced by Harrisia Eriophora are yellow in color with a white, delicious flesh inside that is edible and tangy. Wild Yellow Dragon Apple Cactus is a wild but wonderful ornamental cactus with enormous potential. Easily adapted to a variety of growing conditions and soils, this beautiful night blooming cactus produces fruit best when allowed to climb on a burlap wrapped totem, trellis or your favorite tree. The huge nine inch round flowers are highly fragrant and beautiful in form, usually lasting just one night. Planted in multiples, a mature stand of this trailing cactus in full bloom is an unforgettable sight!