Southland Sod 28 Marathon III Grass Seed Mix, 5 Pounds 100% Improved tall fescue Denser, darker green, finer leafed, and slower growing than previous generations Marathon III can be mowed shorter, resulting in a more compact carpet-like appearance Marathon III seed Marathon iii is more dense, darker green, finer leafed, and slower growing than previous generations Mowing frequency may also be reduced, particularly during cooler seasons Marathon iii contains shortcut which is southlands proprietary variety developed through a cooperative research program This product weighs 5 pounds