At Longmeadow Monty Don finds places in his borders for bananas and dahlias, while in the vegetable garden courgettes and tomatoes are planted out. At RHS Chatsworth show in Derbyshire, Nick Bailey, Carol Klein and Joe Swift highlight the best of the plants and show gardens that the exhibitors have to offer. Adam Frost is in London where he offers tips on how to bring tiny garden spaces to life, and the programme reviews the finalists' gardens in our Every Space Counts competition and opens the vote.