The Goji berry is also called the Chinese wolfberry. It's native to the Himalayan Mountains of Tibet. But they grow in other climates and like a hot, dry summer, so they can be appropriate for the southwest and leeward areas of Hawaii. Goji berries are pressed into juice and made into capsules, and some people believe the Goji berry benefits human health, such as improving vision and energy levels. The Goji plant is a shrub and multiple plants are often grown close together to form a hedge. You can start Goji from seeds or from cuttings of another plant.
Purchase dried berries at a natural foods store. You won't need many: each berry contains numerous small seeds. Put your berries in a plastic zipper bag and seal it. Then freeze them for one month.
Soak your frozen berries in water for up to 24 hours. Then open the mushy berries with a small knife or your fingernail and carefully extract the tiny seeds. Rinse them in a sieve and then allow them to dry slightly for one day in a warm, dark, dry, well-ventilated area.
Fill your pots or flats with standard potting soil and water it well. Then scatter several seeds in each pot or scatter all of your seeds if you're using a flat. Barely cover with more potting soil and then gently spray the pots with water.
Keep your pots or flats very wet and in an area that receives only filtered or partial sunlight during the 10-day germination period. When you see seedlings emerging from the soil, move your pots into an area that gets full sun, introducing them to their new environment gradually by leaving them in the sun for longer periods of time each day over the course of a week or so. Keep your soil moist.
Transplant your young Goji plants to larger pots when their roots grow to the bottom of your small pots or flats. Combine about one fourth of the volume of your potting soil with organic compost or worm castings, or both.
Plant your Goji plants in the garden when their roots reach the bottom of their pots. In very hot areas, plant them in a spot that receives partial or filtered sun. In cooler climates, they can withstand full sun. Dig a planting hole slightly larger than the plant's root ball and then dig some well-rotted manure or composted leaves and other plant parts into the hole. Set your Goji plant into its planting hole, refill with the soil/compost mixture you dug out, and water it well. Keep it moist when rainfall is slight.
Spread a ring of compost around the root zone once a year. Goji should need no other fertilizer.