At the height of summer, it is time to ensure that fruits and vegetables are given attention to ensure maximum cropping. Monty gives advice on the summer pruning of fruit trees, as well as showing how to get the best from tomatoes and chillies. He also recommends plants which will carry on flowering into autumn.Carol Kleinmeets one of her gardening heroes, Roy Lancaster, and joins him as he reminisces on his life and explains his passion for plants. Nick Bailey is on the trail of some more alien invaders to our gardens, and we travel to Wales to meet a chef who has taken on a field in which to grow vegetables. Monty pays a visit to an extraordinary garden in Berkshire and we continue our 50 year celebrations when Rachel de Thame reflects back on how we used to garden 50 years ago.Joe Swiftand Flo Headlam begin an exciting new project to celebrate our golden anniversary when they help a community create a garden in Wiltshire.