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Keep track of your plants with reminders & care tips – all to help you grow successfully
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Free entry to RHS members at selected times »
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Join the RHS today and support our charity
The RHS is the International Cultivar Registration Authority for the genus Rhododendron.
Download registration forms here:
Application form to register a Rhododendron cultivar name
The RHS publishes The Rhododendron Register and Checklist 2004 and subsequent supplements, some of which are available from the link below.
Rhododendron registers and supplements
Join the RHS today and get 12 months for the price of 9
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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.