Bluegrass, a perennial lawn and pasture grass. It has bluish-green stems and dusty blue blossoms. It is also called June grass, from the month in which it usually goes to seed. Bluegrass grows throughout a wide range from Tennessee far into Canada. It gives its name to the Bluegrass region of Kentucky. Kentucky itself is called the Bluegrass State.

Bluegrass is a durable pasture grass that resists trampling and drought. The grass becomes green in early spring and remains green until frosts are severe. It is especially valued for cattle feeding, and also forms a fine lawn. It may be grown from seed or by transplanting sod.

Bluegrass is Poa pratensis of the grass family, Gramineae.