A patio vegetable garden allows you to grow produce without the need of a plot of land. Vegetables are grown in containers, which is suitable for apartment dwellers and others with small spaces. While a south-facing patio is optimum, any patio that receives at least six hours of sunlight a day can be used for a patio garden. There are special considerations to keep in mind when growing a container garden on a patio to ensure that the plants remain healthy and the patio undamaged.
Plant in containers that have bottom drainage and are large enough for the plants you intend to grow. Drill four drainage holes that are 1/2-inch wide in the bottoms of the containers, if necessary.
Plant vegetable transplants that are recommended for container plants, or choose dwarf varieties.
Lay a sheet of black plastic mulch over the patio to protect it from water stains and rust spots from iron in the water or potting mix. Black plastic also prevents the sun from reflecting off light concrete back onto the plants, where it may give them sunburn.
Place the containers on the black plastic and fill them with a soil-less potting mix. Fill the container to within 2 inches of the rim and water the mix until the water drips from the bottom drainage holes.
Grasp the transplant around the stem near where it emerges from the soil and pull off the nursery pot with the other hand. Plant the vegetable in its permanent container to the same depth it was in its nursery pot, except for tomatoes which are planted 1 to 2 inches deeper.
Keep the soil moist at all times after planting. Check the moisture at least once a day and water as needed.
Fertilize the plants every two weeks with a balanced, liquid feed or use slow-release fertilizer granules; follow the label's instructions for application amount and frequency.