Smooth Bromegrass is a leafy sod-forming perennial which spreads underground by rhizomes. Under conditions of readily available soil nitrogen, the percentage of crude protein is very high during early plant growth. Digestible protein decreases rapidly with maturity. Digestive dry matter increases until the initiation of seed. The large amount of green forage produced early and late in the season provides grazing through a longer period than many other grasses. A spring planting does best; fall-sown mixtures may suffer winter injury. New seedlings tend to be rough and stemmy; however, older stands will become increasingly sodbound and yield finer stemmed forage with a high proportion of leaves to stems. Some skill in cutting management is required because if the crown buds are not ready to grow, then a dormant period may follow too early a cutting.