Purple pole beans are a variety of climbing beans known for their vibrant purple pods. These beans grow on tall vines, which can reach heights of 6 to 8 feet, making them ideal for vertical gardening. They thrive in warm weather and require full sun to produce healthy yields. The purple color of the pods is not just for show; it indicates the presence of anthocyanins, which are beneficial antioxidants. When cooked, the beans turn green, but they retain their nutritional value. Pole beans are often used in salads, stir-fries, and other dishes, adding both color and flavor.