Monty Don gets going in his vegetable garden, sowing seeds for a bountiful summer and growing some more unusual species. Mark Lane creates a floral celebration in a container and shares his recommendations for great planting partners for seasonal colour, while Flo Headlam joins the arborists at Westonbirt Arboretum to find out how they manage their collection of trees from around the world. Plus, Nick Bailey goes out and about enjoying that most seasonal of flowers, the daffodil.