Tight, heavy, poorly-drained soils are common in many areas of Texas. With good management practices and the addition of liberal amounts of organic matter, many of these soils can be improved so that they grow satisfactory vegetables. But if you are interested in a quick, highly-productive vegetable garden, consider constructing a raised garden. Raised gardens are often the simplest solution to a difficult soil problem. Raised gardens filled with a good soil or soil mix drain faster and warm up quicker.
Water usually soaks in rather than running off.
Soil compaction is eliminated or reduced. Weeds, soil insects and soil-borne diseases are more easily controlled since recommended treatments are more effective in raised gardens. Raised gardens do not have to be expensive. Construct frames of railroad ties, bricks, flagstones or other materials. Small raised bed gardens may even be constructed from 2x8's.