Peanuts are legumes that grow below ground. The peanut pod usually forms about four inches below the ground and contains two peanut seeds that take form over several months. Machinery is used to harvest the peanuts when they are ready to pick.
Seeds are typically planted during the spring season when the temperature is around 65 degrees Fahrenheit during the daytime. Peanut seeds push up through the soil about two weeks after they are planted. The growing process is completed below the ground and flowers appear when the plant emerges from the soil. When the petals on the flower die in the fall, the peanuts are ready for harvesting.