Vigna unguiculata Also called Asparagus or Yard Long Bean, these Chinese noodle beans can reach two feet (sometimes longer!) but are best harvested for the summer table when they are 12-15 inches long. Plants are highly productive and produce beans in clusters of 4-5. Beans are tender and crisp and even retain their red color after being cooked. Excellent variety. Full sun, climbs to 7 feet. 20 seeds.