Drivers in rural Hamilton County will likely do a double-take this spring because of the unusual, and very green, crop growing on the Young farm near Stratford. That’s because the father/son duo has added peas to their crop rotation.

The Youngs, Brian and his father Stacy, as well as a few other Iowa farmers, are growing peas for Birds Eye, a frozen foods company with a processing plant in southern Minnesota.

"The reason that they’re coming down here is because the Birds Eye facility in Minnesota is at...