Epiphyllum 'Show Boat' Orchid Cactus Cutting 8"-10" Long. The flower size is L. These bloom large white / pink / purple. There blooms last for about 2 days longer if the weather is cool, but not much. When they bloom, they will stay in full bloom the whole time day and night. The most important thing to remember is no direct sunlight, But find a way to get them a lot of sunlight Just not Direct.