Dream State: Grow Your Own Ginger At Home - start it indoors early in the season, as a houseplant. Then move outdoors into your garden in the spring. Every "finger" of the old root will produce a new ginger root.
Grow ginger indoors from grocery store rhizomes. After soaking the root over night, bury it with the buds facing up under an inch of rich soil in a shady area. Ginger thrives in moist conditions, so be sure to water regularly.