Place the pot in a location that receives between six and eight hours of full sun. Place the container next to a trellis or structure that vining green bean plants can climb.
Pour 1 inch of coarse gravel into the bottom of a 2-gallon container. Smooth the gravel so it covers the bottom of the pot evenly.
Fill the container to within 2 inches of the rim with a synthetic growing medium such as Bacto, Jiffy Mix, Jiffy Pro or Promix. Synthetic growing mediums are available for purchase at gardening centers.
Plant the green bean seeds at a depth of ½ inch and cover with growing medium. Plant green bean seeds at 1 inch intervals from one edge of the pot to the other. Plant several bush bean seeds in the middle of the pot.
Apply a fertilizer manufactured for vegetable plants. Follow all tips, warnings, suggestions and directions found on the manufacturer's packaging.
Thin established pole bean seedlings to 3 inches apart, leaving the healthiest plants. Thin established bush bean seedlings so only the strongest plant remains.