Open all year round, this glorious garden attracts visitors from far and wide. The themed gardens change throughout the season, with a cornucopia of plants to wander through. Take a look at the Alnwick Rose in the Rose Garden, or the Chinese wisteria that blooms in May. The Poison Garden, created by the Duchess of Northumberland, contains plants such as belladonna, hemlock and tobacco.
Must see: The Cherry Orchard, which becomes a frothy sea of cherry blossom to herald the start of spring.