The easiest way to grow ginger, is to get yourself a rhizome from the store, let it sit a couple of months until sprout appear. Pop it into some soil. Keep it moist, warm and out of direct sunlight. Within a couple of weeks, the spouts should appear.
Don’t let your plants get below 50 degrees.
Also, don’t let them dry out too much.
Ginger can be grown indoors where the winters are harsh, or outdoors in sub-tropical to tropical climates.