Bankside Open Spaces Trust

Bankside Open Spaces Trust (BOST) is a horticulture, gardening and management of urban open space charity, based in Bankside, the southern bank by the River Thames, Southwark, Central London, England. BOST services clients in London and supports and inspires people of local communities and organisations, among others Tate Modern community garden, to improve, create and enjoy the parks, gardens, green spaces, and, passive and active recreation areas.

More information on the Wikipedia page.