Strawberries grow on plants that have a dense "crown" at the base of the soil. The leaves, fruit, runners, and roots all grow from the crown. Strawberry plants reproduce through stolons or "runners." Runners extend out several inches from the crown, take root in the soil, and produce new plants called "daughter plants". The plants need full sun to produce maximum fruit, and they require at least six hours of direct sunlight each day, but ten or more hours of sunlight each day is ideal. Strawberries can be grown in a variety of ways, including in properly prepared beds or rows, in strawberry jars, and hanging baskets. They prefer slightly acidic soil with a pH between 5.5 and 6.8. Strawberry plants are self-fertile, but they require bees for pollination. Farmers plant strawberries from roots, not seeds, and the roots are from runners that come from the hybridized strawberries. Therefore, strawberries do not grow on vines.