The Royal Horticultural Society (RHS) has a number of plant collections at its gardens and at its headquarters in London. These collections include both ornamental and edible plants, and represent a wide range of plant types, including trees, shrubs, herbaceous perennials, annuals, vegetables, and fruit.
At the RHS gardens, you can find plant collections organized by theme or plant type. For example, at RHS Garden Wisley in Surrey, there are collections of roses, irises, and daffodils, as well as a rock garden and a woodland garden. At RHS Garden Harlow Carr in North Yorkshire, there is a alpine garden, a winter garden, and a herb garden, among others. RHS Garden Hyde Hall in Essex has a rose garden, a wildflower meadow, and a fruit and vegetable garden, while RHS Garden Rosemoor in Devon has a wooded valley, a winter garden, and a Mediterranean garden, among others.
In addition to the plants on display at the RHS gardens, the RHS also has a number of plant collections at its headquarters in London, including the Lindley Library and the RHS Herbarium. The Lindley Library is a specialist horticultural library that houses a collection of books, periodicals, and other resources on horticulture and gardening. The RHS Herbarium is a collection of dried plant specimens that is used for research and education purposes.