The Society maintains a collection of books, reprints and periodicals housed within the library of the National Botanic Garden of Wales at Llanarthney near Carmarthen in Wales
The majority of the Society’s archives are being gathered in the Library of the Royal Botanic Gardens Edinburgh (RGBE).
The Society holds an extensive reference collection (several thousand specimens) of predominantly British and Irish species. Herbarium specimens can be borrowed by post, preferably in batches of 10-20 packets.