Prepare a container with potting soil that is somewhat moist, rich in humus, well drained and moderately acidic. A pH of 6.0 to 7.0 is ideal.
Dig a hole the depth of the plant's root system.
Select a section of growing wild ginger and cut its rhizome -- the running part of the root -- which lies close to the surface of the soil. Using a spade, dig around the root system to remove the plant from the bed, ensuring that attached rhizomes are fully severed. The best time to do this is in fall when plants are going dormant.
Place the plant in the hole and cover roots with soil.
Place the growing container near a window where it can receive a moderate amount of sunlight. Wild ginger prefers full to partial shade exposure, so too much direct sun could be too harsh and may burn the foliage.
Fill a plastic bag with potting soil and moisten slightly. Mix in fresh wild ginger seeds. You can collect seeds from flowering wild ginger about four to six weeks after the blossoms appear. Seeds are grayish and found in the lower portion of the fruiting structure.
Place the bag in the refrigerator for three weeks. This process is called imbibing the seed and prepares them for germination.
Place seeds in pots with soil at a temperature of about 60 to 65 F and provide moderate water to keep soil evenly moist.
Place container in a location with a moderate amount of sunshine. According to PlantBiology.com, this seeding strategy should result in germination in 7 to 20 days.