Those people who have a garden, but no plot for growing vegetables also feel rewarded. There are several factors to be taken into account when assembling container gardens. The first is what sort of container you should use. Basically you can use anything be it plastic, wood or clay, providing it is large enough to support the vegetable or plant when it is fully grown, and that it has sufficient holes in the bottom to allow for good drainage. Allow 6 to 8 inches of depth so the roots can fully establish themselves.
Material type is down to personal preference.
Some prefer clay because it looks traditional, whereas others prefer the lightweight characteristics of plastic. Garden soil is unsuitable for the container garden as it is too heavy and does not allow air to the roots. Because the roots need air, the soil needs to be lightweight. One option is to go and buy some packaged potting soil. Alternatively you could make up your own by combining 2 parts sandy loam soil with 1 part sphagnum peat moss and one part builder s sand.