Series in which horticulturalist Carol Klein proves how easy it is to grow your own food. Potatoes are on the menu as Carol gets to grips with growing organic veg for the first time in 20 years. She also helps a first time vegetables grower and her family with their new plot and shows them how to prepare the ground for their first crop. And at the Royal Horticultural Society's Harlow Carr garden in Yorkshire, the experts show how even a small plot can grow enough greens to feed a family for a whole year.