Find an appropriate site for bean plants, as no amount of water will save beans that grow in the wrong location. Plant your beans in sites that get bright sunlight for 6 to 8 hours every day, and drain quickly. Never plant beans in a spot that sits in the shade or puddles after watering.
Amend the soil to make sure that the beans have good access to both water and nutrition. Mix quick-draining soil with organic compost and turn 2 inches of this mixture into the top 6 inches of soil. Add starter fertilizer to help the beans develop roots and establish.
Plant bean seeds 1 inch deep, every 2 to 6 inches in the rows. Space rows 18 to 36 inches apart. Keep in mind that you can space bush beans more closely than pole beans, as pole beans grow vines and become larger than bush beans.
Soak the soil with 1 to 2 inches of warm or cold water once a week. Never let beans go dry, as the plants will wilt and fail in their harvest. Increase your watering to 2 to 3 inches a week when the blossoms develop and bean pods begin to grow. At this point, the plants will need more water and nutrition to grow their fruit.