Monty helps two families create gardens that are as much for the children as for the adults. In a quiet corner of Doncaster, Nikki and John plan to make a garden with solely edible plants, but a tiny budget and the wettest winter for nearly 250 years threatens to scupper their goal. And in Walthamstow, East London, Nicola and John have quirky ideas of creating a model village in their front yard and a seaside garden in the back. However, they know very little about plants, so it's going to be a big challenge.