1804 - ?

RHS Headquarters, Vincent Square, London

The Royal Horticultural Society was founded as the Horticultural Society of London in 1804 and is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley, Surrey, Hyde Hall, Essex, Harlow Carr, North Yorkshire, Rosemoor, Devon and Bridgewater, Greater Manchester and has flower shows including the Chelsea Flower Show, Hampton Court Palace Flower Show, Tatton Park Flower Show and Cardiff Flower Show with community gardening schemes Britain in Bloom and a vast educational programme. It also supports training for professional and amateur gardeners. The RHS is custodian of the Lindley Library, housed within its headquarters at 80 Vincent Square, London, and in branches at each of its four gardens. The RHS Herbarium has its own image collection, consisting of more than 3,300 original watercolours, approximately 30,000 colour slides and a rapidly increasing number of digital images. World-class photography and art are brought together in the RHS Show at the Saatchi Gallery in 2024 when a diverse range of subjects were presented by participants from around the world. Celebrating habitats such as woodlands, meadows, deserts rainforests with representations of scientific and medicinal plants as well as rare and endangered species.