The Chinese wolfberry, or Goji berry, thrives in areas with hot, dry summers. This Tibetan native fruit forms hedges of shrubs that produce the berries that are made into juice and other products. These products are popular among some health enthusiasts, who believe that they can benefit human health systems such as the liver, eyesight and fertility and that they might be instrumental in fighting diseases such as cancer.
Freeze your dried Goji berries in plastic zipper bags for one month. Each berry contains numerous tiny seeds, so you won’t need many for most nursery purposes.
Thaw your frozen berries by soaking them in a bowl of room temperature water for two hours. When they are soft to the touch, cut them open with a small, sharp knife and extract the seeds. Place the seeds in a fine mesh strainer and then rinse them under running water until the fruit washes off.
Transfer your washed seeds to a baking pan or germination tray with no drainage holes and then add enough water to cover the seeds. Watch for germination after about 10 days--you'll see small white "tails" protruding from one end of each seed. Then plant one seed ½ inch deep in each of your small pots with drainage holes, using equal amounts of worm castings and compost: add ½ cup of sand to each gallon of your potting mix. Water pots well, until water comes out the drainage holes and the potting mix is saturated, and keep them in a warm, sunny place.
Transplant Goji plants to larger pots when they become rootbound: this can take up to six months. Check the drainage holes of their pots periodically and when you see fine white root hairs, it's time to transplant. Use the same combination of compost, worm castings and sand that you used in your smaller pots.
Keep potted Goji plants in a sunny location unless your nursery is in an area with high summer temperatures: keep them in partial sunlight in these environments.