Queen of the Night (Epiphyllum Oxypetalum) 2010 Night Blooming Cereus This flower is easily cultivated, but is rare because it blooms so rarely. They are found in Sri Lanka in the wild and have spiritual meaning to Buddhists. When they do bloom, they bloom only at night and then mysteriously wither before dawn. According to Buddhists, it is believed that when the flower blooms, the Nagas descend to gift the flower to Buddha. The flower also has a rich history in Japan.