Royal Horticultural Society: A Legacy of Gardening Excellence
For over two centuries, the Royal Horticultural Society (RHS) has stood as the United Kingdom's premier gardening charity. Originally established on 7 March 1804 as the Horticultural Society of London, the organization has evolved from a small group of enthusiasts into a global leader in the promotion of horticulture and gardening science.
Today, the RHS serves as a vital resource for millions, combining historical tradition with cutting-edge research to support plant health and community engagement across the UK and beyond.
Key Facts
- Founded: 7 March 1804 (as the Horticultural Society of London)
- Type: Registered charity
- Purpose: To promote gardening and horticulture
- Headquarters: London, SW1
- Membership: Over 609,000 members (as of 2024)
- Current President: Keith Weed
A Rich History of Horticultural Advancement
The early years of the society were defined by scientific curiosity and the pursuit of practical knowledge. One of its most influential early figures was Thomas Andrew Knight, who served as president from 1811 to 1838. Under his leadership, the society expanded its objectives to include practical research, specifically focusing on fruit-breeding programs.
As the society grew, so did its influence. The transition from the Horticultural Society of London to the Royal Horticultural Society in 1861 marked a new era of prestige and expanded botanical reach.
The Evolution of Membership
The society has seen a significant rise in public engagement over the decades. While membership and fellowship were once decided by election, they are now determined by financial contribution. This includes Fellows, who are dedicated supporters contributing a suggested £5,000 per annum as of 2022.
| Financial Year | Number of Members |
|---|---|
| 2013/14 | 414,699 |
| 2015/16 | 448,977 |
| 2017/18 | 490,205 |
| 2019/20 | 525,105 |
| 2021/22 | 603,458 |
| 2023/24 | Approximately 626,000 |
| 2024/25 | Approximately 609,000 |
Iconic Gardens and Global Shows
The RHS manages several world-class gardens that serve as both public attractions and scientific trial grounds. RHS Garden Wisley is the society's oldest garden, following the gift of the land by Sir Thomas Hanbury. Other notable locations include:
- RHS Garden Rosemoor: Presented by Lady Anne Berry in 1988.
- RHS Garden Hyde Hall: Given to the RHS in 1993.
- RHS Garden Harlow Carr: Acquired through a merger in 2001.
- RHS Garden Bridgewater: Opened in May 2021 in Greater Manchester.
Beyond its permanent gardens, the RHS is famous for its spectacular flower shows. The RHS Chelsea Flower Show is a world-renowned event, complemented by the Hampton Court Palace Flower Show and the Tatton Park Flower Show. In 2025, the society expanded its reach further with the introduction of the RHS Flower Show at Wentworth Woodhouse.
Scientific Research and Botanical Resources
The society plays a critical role in taxonomy—the science of naming, describing, and classifying organisms. The RHS acts as the International Registrar for nine different plant categories, including orchids, lilies, daffodils, and conifers. This ensures the accurate identification and standardization of cultivated plants globally.
Furthermore, the RHS maintains an extensive herbarium and image library. This collection includes over 3,300 original watercolours and approximately 30,000 colour slides, providing a vital historical and scientific record for researchers.
Community and Recognition
The RHS is deeply involved in community horticulture through initiatives like Britain in Bloom. Originally administered by the Tidy Britain Group, the RHS took over the competition in 2002. In 2010, they launched the "It's your neighbourhood" campaign to encourage local community gardening.
To honor excellence in the field, the society bestows several prestigious awards. These include the Victoria Medal of Honour (established 1897) and the Elizabeth Medal of Honour (established 2023), both of which are limited to a specific number of holders to reflect the length of their respective reigns.
Frequently Asked Questions
What is the main purpose of the RHS?
The Royal Horticultural Society is a registered charity dedicated to promoting gardening and horticulture through research, education, and public engagement.
How can I become a member of the RHS?
Membership is available through financial contribution. There are also higher-level supporters known as Fellows, who contribute a suggested £5,000 per year.
Which is the oldest RHS garden?
RHS Garden Wisley is the society's oldest garden, having been presented to the RHS by Sir Thomas Hanbury.
What are the RHS plant registries?
The RHS acts as the International Registrar for nine plant categories, including conifers, clematis, daffodils, dahlias, delphiniums, dianthus, lilies, orchids, and rhododendrons.
What is Britain in Bloom?
Britain in Bloom is a competition administered by the RHS that encourages communities to get involved in horticulture to improve their local environments.