A good trellis is one of the most useful things you can add to a vegetable garden.
A trellis lets climbing crops use vertical space instead of covering the ground.
The simplest and cheapest trellis: a horizontal top support, such as a pipe, board or wire stretched between two posts, with vertical strings dropped down to each plant.
Put it in before you plant, or at planting time, so you do not disturb roots later.
Beans find supports on their own; guide the first tendrils toward the string or pole.
Trellised plants produce a lot of fruit in a small footprint, so they need steady water and nutrients.
Remove spent vines before they dry and tangle, and compost healthy material.
Step-by-step advice, charts and free garden calculators at Garden Voila.