Hawaiian Tropical Blue Ginger Plant Root 3 Packs (1 per Pack each bulb is 2" - 4" long) . The ginger plant is a perennial herb. Can grow up to 3 feet high. The leaves are spirally arranged and are green and shiny.The flowers are deep blue, almost purple with yellow anthers. These make a very beautiful ornamental and is easy to grow. Grow as an indoor plant, patio plant, outdoor plant or grow as landscaping. Great for gift giving. This is a perennial plant. Grow in partial shade with regular watering. Can grow in 1,2,3,4,5,6,7,8,9,10,11,12,13 Usda Hardiness Zones. Grow indoors or outdoors. Grows up to 5 feet depending how you prune them. these 3pk weigh 8oz.