Allow the beans to fully mature and begin to dry on the bean plant. This will usually take four to six weeks from the time the beans are ready to eat.
Gather several plants by pulling the entire bean plant out of the ground. Tie the root ends together with string or twine.
Hang grouped plants upside down in a dry, well-ventilated area of the garden. It is important that the plants are not exposed to moisture.
Harvest the seeds when they are brown and brittle. The pods should begin to crack open and the seeds inside should be hard.
Remove the pods from the plants and shell the beans from the pods. Store the beans in paper bags and roll the tops closed to keep out moisture and insects.