Gardeners with a taste for fresh green beans can assure themselves of a continuous bean harvest throughout the second half of the summer by planting multiple bean crops. According to the University of Illinois Extension, instead of planting green bean seeds one time at the beginning of the growing season and watching your beans peter out in mid-summer, you can successfully plant more beans every two weeks until the beginning of August. Using this method, you will have an abundance of beans to harvest.
Prepare a sunny garden area for the entire amount of beans you plan to plant. Work the soil in early spring after the last spring frost occurs. Cultivate the soil using the garden spade down to a depth of approximately 6 inches. Add 2 inches of compost to the top of the soil and work this in completely with the garden spade. Rake the soil surface smooth to finish preparing the garden area.
Make rows for the first bush bean seeds you will plant. In general, planting one to two rows at a time should be sufficient. Make the rows approximately 2 feet apart.
Plant the bean seeds approximately 3 inches apart in the rows under 1 inch of soil. Firm the soil down gently over the newly planted bean seeds.
Provide water immediately after planting the beans. Keep the soil evenly moist while the beans germinate.
Pull weeds carefully from around the bean plants to prevent weeds encroaching on the beans.
Repeat steps two through five approximately two weeks later to plant another crop of beans. You may repeat this cycle though early August if you have the growing space.
Harvest the first beans when the bean pods are between 4 and 6 inches long and firm. Pull the beans from the plants when the plants are dry---do not pick when plants are wet from dew or rain because you risk spreading a bacterial disease among your beans. Continue to harvest beans from these plants as well as the successive plantings throughout the summer.