Half-runner beans are snap beans (Phaseolus vulgaris) that combine the growing habits of a bush bean with those of a pole bean. They grow in U.S. Department of Agriculture plant hardiness zones 3 through 9. “Mountaineer White” is a half-runner cultivar widely grown in areas with cool temperatures between 60 and 75 degrees Fahrenheit during the growing season. Half-runner beans grow about 5 feet tall and take 55 to 60 days to mature. Plant them in an area with at least eight hours of sun a day for the best yield. – homeguides.com