The locavore food movement has ushered in a plethora of rooftop gardens in major (and cramped) cities like New York, San Francisco, and Chicago. Across the Pond, however, London has turned that idea on its head. Ducking 12 stories below city streets, a new farming company in London is growing produce in a greenhouse underground.

Green, Aisle, Parallel, Iron, Design, Symmetry, Plantation, Beam, Steel, pinterest
Courtesy of Growing Underground

Housed in a former World War II bunker situated 100 feet below London's Clapham district, the Growing Underground project produces herbs and micro greens, along with fruits and vegetables like pea shoots, radish, mustard, coriander, red amaranth, celery, parsley, and rocket. The completely controlled, sealed clean-room environment boasts accurate light (LED) and temperature settings, advanced irrigation and ventilation systems, and zero pests. Plus, produce can grow year-round—regardless of the weather up on street-level.

Nature, Green, Brown, Natural environment, Atmosphere, Wood, Photograph, White, Landscape, Line, pinterest
Nature, Green, Leaf, Photograph, White, Snapshot, Photography, Produce, Whole food, Herbaceous plant, pinterest

Though the farm has been running for 18 months, it's only just now ready to start supplying local restaurants and farmers markets with fresh greens in just an hour or two. "We are delighted that our first shoots will be delivered to the surface in the next few weeks," says Richard Ballard, one of the project's founders. If you're still scratching your head as to how all of this works, check out the full video tutorial and tour:

Follow Delish on Instagram.