Adoption of pennycress as a cash cover crop not only can have financial benefits for farmers, it can also have ecosystem benefits, including nutrient retention and increased pollinator health and biodiversity. The dead zone in the Gulf of Mexico, which is the second-largest dead zone globally, has been attributed to nitrogen inputs from agriculture in Minnesota, Iowa, Illinois, Indiana, and Ohio. Both surface and subsurface drainage modifications bypass traditional mitigation efforts. Further, insect pollinators are negatively affected by modern agriculture monocultures of self- or wind-pollinated crops that are poor food sources. Pollinator access to food resources is essential in spring when nest-building, egg-laying, and brood-rearing are initiated. Pennycress as a cover crop can provide these and other ecosystem services that other cover crops do not.