On a Saturday in late October, Carolyn Phinney is hip-deep in a half-acre of vegetables, at the nucleus of what will one day be 15 acres of productive farmland. … The patch is a wealth of herbs, tomatoes, eggplants, peppers, kale, winter squash, and zucchini. So much zucchini—fruits the size of bowling pins hidden under leaves as big as umbrellas. “Zucchini plants are supposed to be 30 inches across. Ours are 8 feet,” she says. “Everything looks like it’s on steroids.” Phinney is the farmer behind CoCo San Sustainable Farm of Martinez, California, a farm built on reclaimed land, using reclaimed water, and started with a simple mission: to get kids to eat more vegetables.