Not all showy flowers are meant for the eyes (or antennae) of diurnal (or daytime) pollinators. Just after dawn Thursday, our Night-blooming Cereus (Cereus peruvianus ‘Monstrosus’, syn. Cereus repandus) could be seen in the last moments of an exciting and transient display: large, sweetly fragrant, white blossoms at the peak of anthesis (flowering period). This cactus is native to Brazil, Uruguay, Paraguay, and possibly Argentina, and is notable because it blooms at night, for only one night, in order to be pollinated by various species of hawk moth. The flowers then close with the arrival of the sun and, if pollination was successful, soon fade to produce an edible fruit known as the Pitaya.