Are you using your polytunnel, also known as high tunnel or hoop house, to its full potential? If so you'll be harvesting fresh crops all year round - sweet potatoes and late celery in November; winter radish, baby carrots and celeriac in early February; salads leaves right through the winter. Even in the 'hungry gap' you'll have a choice of new potatoes, pak choi, peas, tender cabbages, beetroot and more.

How to Grow Food in Your Polytunnel has all the information you need to make the most of this precious covered space, including:

• a detailed crop-by-crop guide to the growing year

• dedicated chapters on growing for each season, including the 'hungry gap'

• a sowing and harvesting calendar to help with planning.