Although farmers are keenly aware of the importance of corn and soybean planting date, weather is a severely limiting factor. There have been many corn and soybean planting dates studies conducted across the U.S., but we are unaware of any studies that included both corn and soybean in the same trial. Objectives are to: 1) evaluate yield response and economic return of ultra-early to very late planting dates of corn and soybean, 2) identify planting date interactions with weeds, insects, and diseases, 3) assess current recommendations for normal versus late planting date management, and 4) distribute results to stakeholders through innovative extension programming.