Access the Herbarium

Book a research visit, access online or find out how to arrange loans.

Researcher looking at table of specimens

Kew's Herbarium contains around seven million vascular plant specimens.

Find out below how to access the Herbarium online, arrange a research visit, request a loan or send in specimens or donated material. 


There are digital versions of the physical collection but they are not yet complete.

In the case of the Herbarium, 850,000 specimens have been digitised (as at 2018) which represents 12% of our seven million specimens.

Access the Herbarium catalogue online

To arrange a visit  

We welcome visits from academics for research purposes.

The public can only visit these collections via special events such as open days and the Kew Science Festival. 
Book your research visit to the Herbarium

To arrange loans

We loan or exchange specimens each year to organisations worldwide. If you wish to arrange a loan or exchange please read our Herbarium loan regulation policy.

Then email requests to

To send in specimens

Please do not send us unsolicited or unaddressed specimens or materials.  

We can only add material to our Herbarium that has been collected and brought into the UK according to a set of strict procedures established by international treaties such as the Convention on Biological Diversity (CBD) and the Convention on Trade in Endangered Species of Wild Fauna and Flora (CITES).  

Before sending specimens, please contact us.

Royal Botanic Gardens, Kew  
TW9 3AE