Green beans

Green beans are the tender, immature pods of the common bean, Phaseolus vulgaris—the same species that includes many familiar dry beans, such as kidney, pinto, and navy beans. Their deepest roots lie in the Americas, where distinct bean populations were domesticated independently in Mesoamerica and the Andean region of South America.

Early farmers primarily valued common beans for their nutritious mature seeds, though young pods could also be eaten. Over generations, growers selected plants with fleshier pods, slower-developing fibers, and better flavor when harvested early. These fresh-pod forms eventually became known in English as string beans, snap beans, or green beans. The name “green bean” describes the harvesting stage rather than a single color: varieties may also produce yellow, purple, or mottled pods.

After European contact with the Americas, common beans spread through Europe, Africa, and Asia. European and later North American breeders further developed pod types intended to be eaten whole. Older varieties often had a tough seam or “string” that had to be removed, while modern stringless beans reflect more recent breeding and selection.

Today, green beans are cultivated worldwide in warm seasons and under protected conditions. China is the largest producer by a wide margin, while important United States production includes Wisconsin for processing and Florida, Georgia, New York, Michigan, and California for fresh-market or processing crops. Whether called snap beans, string beans, or haricots verts, they remain a modern expression of an ancient American domesticated species.