Among the other imaginative agricultural sites across the city is the eco-farm of La Recyclerie, installed along the old railway line at Porte de Clignancourt, and the organic mushroom operation, La Caverne, located in an underground car park at Porte de La Chapelle. The world 's largest greenhouse farm is set to open in Paris next year . The facility , built by Siemens , will span more than 15,000 sq ft at the Paris ' Porte de Versailles exhibition centre and is expected to grow more than 30 different plant species . The facility will also feature an on - site restaurant and bar offering produce grown on the farm .
The world 's largest greenhouse farm is set to open in Paris next year . The facility , built by Siemens , will span more than 15,000 sq ft at the Paris ' Porte de Versailles exhibition centre and is expected to grow more than 30 different plant species . The facility will also feature an on - site restaurant and bar offering produce grown on the farm .