Organic Pinto Bean Seeds. Organic. Non-GMO. Annual. Phaseolus vulgaris. 50-60 days for green bean. 90-110 for dry pinto bean. Pinto bean is one of the most hardy and popular bush beans grown. Native to hot, arid, and full sun climates, pinto bean is a relatively quick producer and begins to produce as soon as 50-60 days. If drying for traditional pinto bean use, allow the seeds to remain on the bush 90-110 days, in which pods will no longer be edible. Pinto is a bush bean that matures 24-30 inches tall and about 18-24 inches wide. Bean pods and seeds start off green when immature and shell is still edible, but develop a traditional brown pinto bean coloring as it is allowed to dry in the shell. About 70 pinto beans per ounce.