Jonathan Green Contractors Annual Ryegrass Full Sun/Medium Shade Grass Seed 50 lbContractors Mix contains annual ryegrass so it germinates quickly and provides a fast grass cover. It is most often used by new home builders to establish a lawn quickly because it provides an excellent value for the price. Contractors Grass Seed Mixture can be overseeded with any Black Beauty Grass Seed Mixture to grow a lawn that will persist for years to come. Ideal for soil stabilization Use for temporary lawn seeding Grows in full sun to medium