Four fire engines and around 25 firefighters responded to a fire on Graham Road, Hackney.
The fire involved a community garden, where a range of allotments and structures were destroyed by the fire. A shed on the site was also partially damaged. There are no reports of any injuries.
The Brigade was first called about the fire at 2238, and crews from Homerton, Bethnal Green and Stoke Newington were sent to the scene. Crews had the fire under control by 2357.
The fire is believed to have been accidental, with the cause recorded as undetermined.