Ten agricultural vendors at the Carousel Sunday Market will get free space if they donate $20 worth of produce at each market.
The food will be distributed to Mountain Home Montana and the Watson Children's Shelter.
The nonprofits help kids and mothers in transition.
The 10 free spaces are paid for by a grant from the Dennis and Phyllis Washington Foundation.
The market hopes to attract growers who may be richer in produce than cash.
"This is a great deal for the Carousel because it helps build our market," said Carousel Executive Director Theresa Cox. "We get more agricultural vendors. It's a great deal for the vendors because it's easier for them to give us produce than it is for them to give us cash. And it's a wonderful deal for Watsons and Mountain Home, because they don't have to pay for the produce they get."
The Sunday Market is scheduled from June 16 through September 22.
Vendor applications are available at the Carousel website or at the Carousel itself.
The market advisory board will choose the 10 vendors on May 15.