In 1879 the Duke of Sutherland's head gardener David Melville, raised a new snowdrop variety. Galanthus nivalis 'Melvillei’ was awarded a Certificate of Merit by the RHS. Melville distributed bulbs to many gardens and enthusiasts; unfortunately, it seems likely that the variety has now died out. The widely grown modern snowdrop variety Galanthus 'Magnet' has Melville's snowdrop as one of its parents. The Castle is not open during the festival; visitors are welcome to the garden and policies. There are no facilities, but access is free.