Satellite of the Royal Botanic Garden, Edinburgh, north of Dunoon. National pinetum and rhododendron collection, with a mild climate and heavy winter rainfall. Open March to October. Information for visitors.
Among many other features, historic Roman, Mediaeval and Tudor gardens, a herb garden, the National Bonsai Collection, collections of tropical and desert plants, and an Education Centre. Includes a diary of events.
Collection of 4,500 species just outside Bristol from across the world, in beds and glasshouses; includes a collection conserving threatened plants native to SW England, and collections of plants used in alternative medicine.
Collections of British Native Plants, and Trees. Other gardens include Scented, Woodland, Winter, Rock and Genetic. Glasshouses house the tropical, desert and alpine collections. Education and events programme.
Kew at Castle Howard (North Yorkshire) is a wonderful arboretum set in the outstanding Howardian Hills containing many rare and endangered trees and shrubs.