After two cycles of recurrent selection seed was harvested from those plants which exhibited erectness, dense tillering, high vigor and disease tolerance. A selection from germplasm originating in Europe, probably Portugal. 50 uniform parental clones were polycrossed to form the nucleus seed. Establishment Broadcast seeding on thin pastures has been successful. Seed size is similar to alfalfa and thus should be planted in a shallow, well packed seed bed.
Initial growth is rapid, comparable to perennial ryegrass.
Otherwise, fertilize in order to maintain active growth of grasses and clovers and ribgrass will thrive within a range of 5 to 8 pH. Management Ribgrass needs to be used and grazed repeatedly to be productive. It recuperates well but does not accumulate to produce seasonal hay production. If ribgrass is not grazed, growth of dry matter is inhibited. Pest Resistance Ribgrass does not seem to host any problem fungus or insects. This could be do to the content of tannins in the leaf tissue.