Make this tomato growing spot with the fence and poles, a 13 gallon or 5 gallon bucket with holes drilled in it, and a couple of shovels of compost in it. You water each tomato plant with 5 gallons of water a week. He used 4 plants in this picture.
"""Cut the bottom off a plastic pot to contain invasive plants & bury in the ground. I have been doing this for a few years & works great for containing plants that tend to spread, but that I still want to plant in the garden. This also works good for planting a plant in an area that tends to get filled with roots etc. from other plants. I will use a larger pot so that the plant can spread it's roots and grow deeper roots, but keeps other tree roots from choking out the one I planted."""