Vegetables On A Wet Soil.

Over Half the soil type people try to grow vegetables on in the UK is clay or a clay loam.Whilst its a good soil if managed correctly it can be cooled in the spring and have issues with poor drainage.The solution is often to dig into this soil organic matter which will be broken down into humist and help improve the structure of the soil,opening up the structure to allow better drainage and more air flow.
An ideal source of organic matter for a clay soil is spent mushroom compost. Another method to deal with a clay soil for a vegetable garden is to create raised bed,this will create areas were the soil warms up more quickly in the spring and has better drainage.