The Des Moines Farmers Market and Food Truck Saturdays runs June through September. 2 hours parking validated! The Des Moines Waterfront Farmers Market was formed in 2006 as a non-profit entity, unique among the local farmers markets by requiring all of its farmers to meet a basic set of environmental stewardship principles that ensure their farming practices protect the environment while sustaining the long term viability of farmland. These practices include protecting water quality, using natural methods of pest control, preventing soil loss, conserving energy, using water conservation measures, protecting fish and wildlife habitat and enhancing genetic diversity.