With the right equipment and growing methods, you can grow in a container just about anything you can grow in a garden. Pole beans are a perfect example. Not only are pole beans prolific producers when planted in containers, they make attractive green shapes to decorate your outdoor space.
Plant pole beans in warmer weather, after you have missed any chance of frost. If you are not familiar with your local frost dates, contact your local extension service to find out or look in Farmers' Almanac.
Put a 2- to 3-inch layer of rocks and gravel in the bottom of the container. This will help with draining so water won't pool at the bottom.
Fill the container with potting soil to 1 inch below the top.
Push one bamboo pole into each corner of the planter. If you have a round planter, push the poles in at four equal points, all the way to the bottom of the planter.
Gather together the four tops of the bamboo poles and bend them so that all four tops are touching. Wind string around the poles at this point to keep the four ends together. Make two or three knots to make sure that the string will hold, then cut it off.
Wind string around the outside of the poles about a foot above the ground. Wind another layer of string around the poles 2 feet above the ground. Continue winding levels of string every foot until you reach the top of the bamboo. The string will give extra support for the bean vines.
Plant two bean seeds at the base of every bamboo pole. Plant the seeds an inch deep and about 2 inches apart. Water the beans thoroughly until the soil is saturated.
Water the container with liquid fertilizer when the beans have sprouted. Water the plants with plain water every day after that. Make sure the bean plants don't dry out. Turn the planter every day when you water it to ensure all sides of the plants get equal amounts of sunlight.
Help the vines begin twining up the poles by loosely tying them with string. After the initial tying they should readily vine up to the top, filling in the space between the poles and creating a green pyramid in your planter.