Sweet-flavored goji berries have been grown to treat vision impairments, diabetes and improve lifespan in China for almost 2,000 years, according to the Minnesota Department of Agriculture. Goji berries (Lycium barbarum L.), native to western China and Mongolia, grow as a perennial vine with single berries that grow along its branches. Vines grow in a range of temperatures from -15 degrees Fahrenheit to 100 degrees Fahrenheit, making it suitable to grow in all areas of the United States.
Purchase goji berry seeds or plants. Goji berry seeds are sold as a dried berry that must be placed in a wet paper towel for an hour. Once moist, slice the berry open and remove about 20 to 30 seeds from it. Plant the seeds immediately after removing from the berry.
Select a sunny spot that receives at least eight hours of sun a day. Plant outdoors in spring, after all chance of frost has passed. If using seeds, start indoors six to eight weeks before your planting date.
Till the soil before planting and add a 1-inch layer of compost to the top of the soil. Till the area again to mix the compost into the soil.
Plant seeds 1 inch deep in the soil. If using plants, dig a hole as deep and wide as the root ball of the plant. Pack soil lightly over seeds or firmly over plant roots and up to the base.
Space plants and seeds 6 to 8 inches apart in rows 6 to 8 inches apart. Place wooden gardening stakes in the ground next to the plants; tie the plants to the stakes for support as they grow.
Water the soil surrounding the berry plants daily. Water until the soil appears moist and allow to dry before watering again.
Pick goji berry fruits when bright orange red. Goji berry plants take one to three years before they produce fruit.