The challenge is on to become the capital’s best community food growers.

Social housing residents are being invited to take part in a new competition launched by Boris Johnson, which is designed to encourage housing associations to provide plots of land for tenants to nurture into thriving food gardens.

The Edible Estates competition ties in with the pledge from City Hall to create 2,012 community food-growing spaces by the end of 2012.

The Mayor of London said: “I warmly welcome the landowners and organisations who have come on board to help provide the land needed for [the Capital Growth initiative].

“I call on even more to now rally to our green-fingered cause.”

To enter visit capitalgrowth.org/edibleestatescompetition. Prizes include £250 gift cards, tool sets, worm cafes, training as well as practical help and advice. The closing date is October 20.