Plant directly into rich, fast draining soil in spring after the soil has warmed. Sow 1 inch deep and 2-4 inches apart in rows 18-24 inches apart.
Prepare soil ahead of time. When planting, add a mature or aged compost and this should be all the fertilizer you need if your are starting with a healthy soil.
Beans grow best when the soil is fertilized well. For an area that is 10 feet long and 10 feet wide, use 2 to 3 pounds of fertilizer such as 10-20-10. Spread the fertilizer evenly over the area then mix it in with the top 3 to 4 inches of soil.