Get advice from some of the country's best professional gardeners in this ongoing series from the National Trust. This month, learn about the difference between spent blooming and dead-heading roses from Jonny Bass, Head Gardener at Mottisfont in Romsey. Find out more about gardening from the National Trust at: www.nationaltrust.org.uk/gardens Or discover Mottisfont at www.nationaltrust.org.uk/mottisfont Music: Summer by Moby