Placing a vertical trellis near the pole bean plants is the easiest way to provide a stake for the natural climbers, according to Organic Gardening magazine. A tepee-shaped stake made from three supports also works, but the beans are more difficult to harvest because they grow inside the tepee.
Pole beans take up the same space as bush beans, but because pole beans grow vertically, they produce up to three times the harvest, Organic Gardening notes. Using a trellis keeps the plants off the ground where they can be infected by disease. Birds often rest on the trellis and eat bugs, providing natural pest control, according to Mother Earth News.