Grow boxes are small container gardens that are self watering and reusable, costing little to make. Garden boxes are ideal for apartment dwellers and those who travel constantly and need a way to grow plants without having to worry about consistent watering. The average cost of a grow box is around $20. Grow boxes allow you to raise any kind of vegetable that has a compact growing style, including vegetables, fruits, flowers and herbs.
Cut 1/2 to 2 inches from the edge of the lid of the 32-gallon container with a jigsaw so the lid fits inside the container itself.
Drill 1/4-inch holes 2 inches apart over the entire lid with an electric drill. This provides drainage for the soil.
Drill five or six holes in the bottom 6 inches of the PVC pipe.
Place the nursery pots at the bottom of the container open-end up and place the container lid on top of them for support. Cut one hole the size of the PVC pipe and another hole the size of one of the nursery pots.
Drill holes in the side of the container for drainage.
Drill two holes, one on each side of the container and fit the piece of wire through the holes. Bend the wire so that it stay taut in place to prevent the container from bulging when full of dirt, advises Texas A&M University Extension.
Place the container where you want it to remain, fit the PVC pipe into its hole, and fill the pipe with water. Once water pours out of the drainage holes, the reservoir is full.
Fill the container with dirt and plant your vegetables, flowers or fruit.