Annual rye may require up to three mowings a week in the spring, depending on rain and fertilizer applications. Annual Rye is also light green and produces a hard weed like seed head. Perennial rye is the better choice. It grows much slower and can be managed with one mowing a week or less. Perennial also has a deep green color and much softer texture compared to the annual rye.
Perennial rye is more expensive but is worth it for the appearence and maintenance.