Lolium perenne

Perennial Ryegrass is a cool season turf grass with a bunch-like form. It is more often grown in a mixture with Kentucky Bluegrass. It is often used for winter overseeding on sites where high quality and winter color are needed. It does not often survive the onset of warm weather in spring and early summer. It is also a good turfgrass for overseeding bermudagrass, particularly when a wearable surface is needed on athletic fields during the winter or early spring.

Perennial Ryegrass has shallow roots and glossy green leaf blades. It is quick to germinate and provides good coverage and traffic tolerance. However, it is non-spreading habit and can become tufted. Because it does not spread, reseeding must be done to cover bare spots. 

For more information, please refer to the NC State Extension TurfFiles entry for Perennial Ryegrass.