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The RHS researches a wide range of plant groups including their naming, cultivation and pests and diseases.
More on our research
Use this database to search a comprehensive index of garden plant names.
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The RHS Herbarium at Wisley is the largest herbarium dedicated to ornamental plants in the UK.
The RHS Herbarium
The RHS is the International Cultivar Registration Authority for nine major plant groups, currently processing more than 4,000 plant names a year.
More on plant registration
Well-respected plantsman, Graham Rice, uncovers all the latest new plants in his blog.
Read Graham's blog
The results of many of our major trials are now being produced in full colour bulletins. These bulletins include full descriptions of the Award of Garden Merit plants, botanical background and cultivation information.
View the full list of plant bulletins
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