50-58 Days. Non-GMO, heirloom, Open-pollinated. These productive and dependable plants are highly disease resistant and can handle cooler temperatures than most other bush beans. Plants produce light yellow stringless pods that grow to be between 5 and 6 inches long. There is no need to use a support for these plants to flourish; they are a bush plant and can grow on their own. Inner beans are black. They are flavorful with a hint of nuttiness that adds an exciting flavor to many dishes. .