Shampoo ginger is a tropical plant that grows up to 4-6 feet tall, known for its fragrant, tuberous rhizomes used in traditional Hawaiian hair and skin care, as well as in culinary applications for its mild, ginger-like flavor. It thrives in warm, humid climates with partial to full shade and well-drained soil, making it an excellent addition to food forests for its versatility and ability to provide ground cover. Shampoo ginger is typically propagated by dividing its rhizomes, requires regular watering, and benefits from mulch to retain soil moisture, with its peak growing season in the warmer months.