Epiphyllum oxypetalumEpiphyllum oxypetalum at a glance: Epiphyllum oxypetalum, often called Queen of the Night, is a large epiphytic cactus grown for its broad trailing stems and dramatic night blooming white flowers that can reach impressive size and open for a single evening. Even outside flowering season, its spineless, leaf like stems create a strong cascading habit that suits hanging baskets, high shelves, or large containers. It prefers bright, indirect light, an