At Longmeadow, Monty Don adds a variety of herbs that thrive in shade to the herb garden and adds summer annuals to the cottage garden. Nick Bailey has taken a rare opportunity to design his town garden from scratch and gives tips on how to plan and lay out a path, while Carol Klein celebrates the hardy geranium and the abundance of varieties that give masses of colour to the summer garden. Plus, the programme finds a Wolverhampton couple who have created a garden full of mystery and imagination.