A group of Bronx students are helping to lead a green revolution right out of their own classroom, growing their own herbs and vegetables as part of gardening program at Discovery High School, on the Walton Campus in Kingsbridge Heights.

The project is the brainchild of Steve Ritz, a longtime public school teacher who decided to incorporate some real life plants into his earth science and biology classes, rather than have his students read about them in a book. Before long, the classroom was the garden, and his students now grow their own herbs and vegetables in tall, vertical planters they keep in the back of the room.

The program has since taken off: Ritz’ students sell their vegetables to local restaurants for spending cash, and donate pounds of their produce to community soup kitchens. This year, the class hosted two healthy luncheons at the school, feeding hundreds of fellow students using only homegrown, organic ingredients.

In November, the students put on a farmers market to raise money for the school, an event that was featured on CNN. They were also hired to build garden installations — with their own irrigation systems — at the NBC Experience Store on 49th Street in Manhattan.

“There’s something really remarkable about a kid who’s hungry being able to come into your class, and instead of having yet another Little Debbie’s snack or yet another set of something that’s laden with sugar and fat, be able to walk up to your wall, pull off a strawberry, sit back down and get back to work,” Ritz said.

Be on the lookout for another Discovery garden harvest sometime this spring.