At Longmeadow, Monty revels in seasonal blossom and flowers, plants out his tomatoes and demystifies the myriad of different plant foods by showing us what we can feed our plants and when we should be doing it. Arit Anderson visits the peatlands of Cumbria, where she begins her journey looking into the use of peat in the horticultural industry. We catch up with Sue Kent to find out about the progress she has made on her allotment and in her garden this spring. Meanwhile, in Cornwall, we discover a garden designer with a unique approach to combining edible and ornamental plants, and in Wales, we meet a gardener who has amassed a collection of over 400 different rhododendrons.