About 3-6 months.
** Green beans are like most green vegetables. They will keep growing until they are picked or die. The green bean has more flavor and is more tender if picked at about 3 to 5 inches long. Any longer and the green bean can get rather stringy and bitter. But you can let them grow so the inside bean is as big as a lima bean. The beans thpugh on the inside are a purplish colo if you plant the blue lake green beans.
Why green beans do not grow without soil
Green Beans
Green beans grow better in soil.
Green beans grow in the spring through summer into the fall.They are an easy vegetable to grow, and well worth the effort.
were do green beans grow in the world
soil
Green Beans
Green Beans!
yes
i say lima beans, then butter beans. lima beans, Castro beans, and green beans
Only if the beans were left in a body of water for a long time. However mold does grow on beans.
In the US at least, green beans have been selected by plant breeders to grow well across a wider variety of climates than red beans. Red beans are typically grown in drier climates with less chance of disease than more humid parts of the country. Your area might be humid enough that red beans develop disease more easily.