A csv file containing collector and identification records for herbarium specimens found that have been collected in the Museum grounds. Dates range from 1865 to 2022. As the Natural History Museum herbarium (BM) is imaged and digitised we are likely to find more collections, particularly from the early 20th century. Current plant records in the gardens are observational only and can be found in the resources mentioned in the text. More specimens will be available as we encounter them via the search function on the NHM Data Portal (https://data.nhm.ac.uk/).