Drive a 5-foot-long iron fence post into the ground to a distance of 1 foot, using a sledgehammer.
Drive another fence post into the ground 2 feet away and at a 45-degree angle to the first one. Repeat the process with one more fence post 2 feet away from each of the others, forming a perfect triangle. Face the front of the triangle into the wind to protect the plant as much as possible.
Wrap a section of heavy-duty wire grid concrete reinforcing wire that is 4 feet long and 4 feet high around the three posts, leaving the back of the triangle open.
Attach the wire grid securely to the posts by twisting heavy-gauge wire around the posts and the wire grid, using pliers. Attach the wire grid to the posts at 1-foot intervals from top to bottom.
Place the vegetable plant in the center of the triangle with easy access to the vegetable ladder trellis.