Outsidepride Climbing Vine Scarlet Runner Beans - 50 Seeds Scarlet runner beans are a climbing, vining plant which grow as an annual in USDA Zones 3 - 11. This climber can reach heights of nearly 12 feet tall. The beans grow up to a foot long and are especially good when picked and eaten when they are young and tender. These flower seeds produce an attractive, decorative plant to have growing up a back fence or trellis, and it also provides a nutritious bean that is great to eat. Phaseolus coccineus is a fast growing annual that prefers full sun and a structure to climb. It can reach over 12 feet tall, and it produces clusters of crimson red, white, and bi-colored red and white flowers. All you need is 1 seed per plant to get this vine started.