A Peterson Pawpaw selected as a seedling from the Blandy Experimental Farm. "Flavor sweet and rich," Peterson reports. "Texture firm, melting, smooth. Flesh color medium yellow." Ron Powell says that in the humid Ohio River Valley, Potomac is susceptible to splitting due Phyllosticta. "Very large fruit," he adds; "produces fruit over a pound." KSU reports, "Extremely fleshy," and approximately 4 percent seed by weight. "Fruit size large; averaging 235 g/fruit and 45 fruit per tree at KSU. Problems with fruit cracking some years." Medium productivity. Lee Brumley, of Indiana, reported growing a 28.64-ounce Potomac pawpaw (in the Spring 2011 Pawpaw Pickin's newsletter). According to Mario Mandujano, research technician at Michigan State University, produces extremly large fruit but ripens too late for Michigan. A sister variety to Susquehanna with even larger fruit. Originated from an orchard near the Potomac river. A favorite of John Popenoe. Strong apical dominance - ie, the tree grows very upright, is less spreading than most. Dr. Pomper (KSU) insisted Neal release this.