While the very name “peanut butter” contains the word “nut”, peanuts are not nuts at all. In fact, peanuts are legumes that don’t grow on trees like other nuts (i.e., almonds, pecans, chestnuts, walnuts). Peanuts grow underground and belong to the pea, bean, lentil, and edible seed family, called leguminosae, which all grow in pods..
The actual peanut takes about 5-months to fully grow—from planting to harvesting. And it’s the peanut seed we actually pluck from it’s pod to eat. That might seem like a lot of fancy finger work when you consider the fact that it takes roughly 540 individual peanuts to make one 12-ounce jar of peanut butter.