Vigna unguiculata Also called Asparagus or Noodle Bean, these amazing 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. Green beans are stringless, tender, and crisp. This white-seeded variety is productive even in heat. Full sun, climbs to 7 feet. 20 seeds.