The Hampstead Garden Suburb Archives Trust is a registered charity, known as Suburb Archives. It is responsible for ensuring that the archives of the suburb are properly cared for and are accessible to all.

Documenting the history of the Flower Shows and competitions that the Horticultural Society has been running since the early days of the Suburb. 

The horticultural society was the first society in the suburb, created on the 20th of May 1909. The first ever flower show was held on the August bank holiday that year.