1 Yellow Ginger Hedychium Gardnerianum Root. Rhizome is 2 - 4 inch.There are four different types/colors of Hawaiian Tropical Ginger plant rhizome roots: Red and Pink Alpinia Purpurata, Blue Dichorisandra Thyrsiflora, White Hedychium Coronarium and Yellow Hedychium Gardnerianum. Ginger plants are highly sought after for landscaping projects as these ginger plant flower for most of the year. Once bloomed the ginger flowers are very fragrant. The white and yellow gingers are frequently seen in the Hawaiian flower lei because their fragrance is sweet. Ginger plants like shade to partial sun with regular watering. Ginger plants are a perennial plant and once flowering blooms, "plantlets" will emerge and propagate themselves. You'll soon have an oasis of tropical Hawaiian ginger in every color and glorious fragrance. These ginger plants are for houseplant, patio plants, office plants, indoor plants, outdoor plants, landscaping.