Timothy (Phleum pratense) is the fourth most widely sown cool-season perennial grass used in Kentucky for forage, ranking behind tall fescue, orchardgrass, and Kentucky bluegrass. It is a late-maturing bunchgrass that can be used for grazing but is mainly harvested as hay, particularly for horses. For hay production, timothy can be sown with alfalfa or red clover, while white clover or birdsfoot trefoil make good mixtures with timothy for grazing. Management is similar to that for other cool-season grasses. Harvesting at the mid- to late-boot stage is needed to assure good yields and high forage quality. Quality of timothy declines more rapidly than other cool-season grasses as it over-matures. In Kentucky, timothy behaves like a shortlived perennial with stands lasting for 2-3 years.
Lauriault, L. M.; Phillips, Timothy D.; and Henning, Jimmy C., "1994 Kentucky Timothy Variety Test Report" (1994). Agronomy Notes. 41.