dragon fruit flower only blooms at night and wilts during the day

background nature leaf white floral beauty garden green fruits agriculture plant tropical colorful growth dragon beautiful cactus natural organic yellow petal botany hand pollen stamen botanical pistil blossom flora exotic fruit reproduction fertilization stigma bloom pollinated blooming flower blossoms bright closeup fresh grow growing sweet nutrients pink violet blooms night wilts day day buds unopened flowers surrounded layers fleshy sepals vining stems