Get the seeds
The first step in growing beans and corn together is to purchase good quality seeds of both the plants from the local nursery or garden store.
Decide the location
Both corn and bean plants prefer rich, fertile and well-drained sites that receives at least six to eight hours of direct sunlight.
Prepare the soil
Rocky soil is usually less favourable for a stockier corn plant than a robust root system to support its own weight, height as well as the added stress from the ears of corn. Till the soil deep (at least 8 to 10 inches deep) with a shovel or rototiller to make a proper bed for the corn to root. Spread a 2 to 3 inch layer of decomposed manure, peat moss and organic compost over the area and work it out into the soil with the shovel. Also add granular fertilizer following the directions on the package.
Space the rows correctly
Since corn needs cross pollination to produce ears of corn, spacing and number of rows is critical. For good pollination, make at least four to six rows, 10 feet long and spaced five feet.
Sow corn seeds
Plant each corn seed to a depth of one inch in a mound 18 inches in diameter and 4 inches high. Make sure you keep a distance of six inches between seeds in all directions. Water the bed thoroughly and keep the soil moist until germination takes place (in five to seven days).
Plant beans several weeks after your corn plants, when the latter is at least 4 inches high. This will give the bean plants proper trellis to climb on. If you plant the beans too early, there will be no corn stalk for them to climb on. Sow three to four bean seeds to a depth of one inch and at a distance of three inches from corn plants. Water the soil thoroughly and keep it slightly moist before the seedlings sprout (in seven to ten days).