Water Lily Sioux is, perhaps, the most enchanting water lily of all On the first day, light yellow flowers float gently on the surface of the water above green lily pads mottled with red. As the days progress, the flowers change to deep orange and then turn to a coppery red. Each star-shape flower boasts 19-20 petals. Deep green leaves enhance the dramatic changes of color. The Sioux’s fragrant colorful blooms and easy care make it an ideal choice for water gardens and ponds of all sizes.