Silvergrass Band performing at Prairie Days. Prairie Days Offers Entertainment For All September 23, 2021 - In Darke County News‚ Events‚ Festivals‚ Greenville‚ Local News‚ Press Releases By Press Release Comment off Prairie Days takes place September 25-26, 2021 in Greenville, OhioClick Here To Download This Press Release as a PDF File. Press ReleaseThis press release was submitted to Darke County Now via our website submission service. Previous FAIR RESULTS – Saturday Flower Show Next EverHeart Hospice Announces New Board Member