Monty Don catches up with summer maintenance in his wildlife garden and recommends plants for dry shade under trees. Carol Klein travels to Aberglasney Gardens in south-west Wales to explore the best planting partners for that most ephemeral of perennials, the Thalictrum, while Joe Swift is in Devon meeting a plantsman who has used plants from all over the globe to create an extraordinary garden. Plus, Adam Frost joins a group of gardeners in Worksop where gardening has helped to create a sense of community and wellbeing, and Nick Bailey finds out more about the lily beetle.