To begin with, if there is still a supply of winter vegetables in your plot they should be covered with a dense layer of straw to protect them from frost. Any remaining empty beds should be raked over, mulching the leaf-mould in from last year to ensure that the soil has the best possible nutrients to grow your crops in later on.
The next job is to sort your compost out. Once you have an established area no matter how big or small, a compost heap needs little maintenance besides being turned every now and again, and will provide you with nutrient-rich material which can be added to the soil to give your veg the best possible chance and without the use of chemicals.
Investing in a water-collection butt is also a must at this time of year in order to collect the rainwater that can be used to water your growing crops. Not only will this save you a few pennies on the water bill, but they are also relatively inexpensive and are easy to install, with rainwater also having fewer chemicals in than the water from the tap.
January at a glance: Mulch last year's leaf-mould into empty beds. Force rhubarb by covering with an upturned pot. Choose an area to start creating a compost pile. Install a water-butt to begin collecting rainwater. Plant onion seeds on warm windowsills.