(Zephyranthus sulphuria): Lime yellow flowers.10-15 cm high. The Zephyranthus are called Indian Crocus or Rain Lilies because of their habit of flowering following the fall rains in their native habitat. Plant them 2-3 cm apart under full sunlight. Spring flowering, beautify your garden by planting them in mass. Also makes very good pot plants. 5 flowering size bulbs per packet.