Annual ryegrass, Lolium multiflorum
Perennial ryegrass, Lolium perenne
There are no cultivars called for in annual or perennial ryegrass since long-term survival is not critical and may not be desirable. These species provide a quick, temporary cover and should be limited to 10% or less of a seed mix. The use of these species should be limited because they use nutrients that are intended for the perennial species in the mix and can produce a heavy plant cover, slowing the growth of the perennial species. Annual and perennial ryegrasses are also very attractive to herbivores, causing potential vehicle/animal conflicts.