Spiral Ginger (Costus guanaiensis) This offer is for a packet of 10 Seeds Plant type: x Hardiness: Zones 9-11, Works well pots in all zones to overwinter indoors Size: 5 feet tall, Smaller in pots Culture: Shade to part shade and well drained fertile soil - Plenty of water and regular fertilizer Pink Spiral Ginger, native to Costa Rica, is a lovely and exotic plant that grows to 5 feet tall. It has glossy green, oval leaves that spiral around the cane-like stems. It produces large pink, orchid-like flowers at the end of the branches from a cone-like bract. Prefers part-shade and a mild climate with plenty of moisture. Makes a great pot plant for indoors.