Orchardgrass

Orchardgrass Plant Information


Orchardgrass grows in the following 51 states:

Alaska, Arizona, Colorado, Connecticut, District Of Columbia, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Maryland, Minnesota, Mississippi, Montana, Nebraska, New Hampshire, New Mexico, North Carolina, Oklahoma, Pennsylvania, South Carolina, South Dakota, Utah, Vermont, Wisconsin, Wyoming, Oregon, West Virginia, Alabama, Arkansas, California, Delaware, Florida, Hawaii, Iowa, Louisiana, Maine, Massachusetts, Michigan, Missouri, Nevada, New Jersey, New York, North Dakota, Ohio, Rhode Island, Tennessee, Texas, Virginia, Washington

Dactylis glomerata, also known as cock's-foot, orchard grass, or cat grass (due to its popularity for use with domestic cats) is a common species of grass in the genus Dactylis. It is a cool-season perennial C3 bunchgrass native throughout most of Europe, temperate Asia, and northern Africa.

Dactylis glomerata occurs from sea level in the north of its range, to as high as 4,000 meters in altitude in the south of its range in Pakistan. It is widely used for hay and as a forage grass.
It is a principal species in the widespread National Vegetation Classification habitat community MG1 (Arrhenatherum elatius grassland) in the United Kingdom, and so can be found with Arrhenatherum elatius (false oat grass).
It can be found in meadows, pasture, roadsides, and rough grassland.
It has been introduced into North America, New Zealand and Australia, and is now widely naturalised. In some areas, it has become an invasive species.
Cock's-foot grows in dense perennial tussocks to 20-140 centimetres tall, with grey-green leaves 20-50cm long and up to 1.5cm broad, and a distinctive tufted triangular flowerhead 10-15cm long, which may be either green or red- to purple-tinged (usually green in shade, redder in full sun), turning pale grey-brown at seed maturity. The spikelets are 5-9mm long, typically containing two to five flowers. It has a characteristic flattened stem base which distinguishes it from many other grasses.
It flowers from June to September.
Dactylis glomerata is treated as the sole species in the genus Dactylis by some authors, while others include one to four other species. It is commonly divided into several regional subspecies, particularly by those authors accepting only the single species:
Dactylis glomerata subsp. glomerata and subsp. hispanica are tetraploid forms with 28 chromosomes; some of the other subspecies, including subsp. himalayensis and subsp. lobata are diploid, with 2n = 14. Hexaploid forms with 42 chromosomes are also known, but rare. Tetraploid forms are larger and coarser than diploid forms.
Cock's-foot is widely used as a hay grass and for pastures because of its high yields and sugar content, which makes it sweeter than most other temperate grasses. In dry areas as in much of Australia, Mediterranean subspecies such as subsp. hispanica are preferred for their greater drought tolerance. It requires careful grazing management; if it is undergrazed it becomes coarse and unpalatable.
In some areas to which it has been introduced, cock's-foot has become an invasive weed, notably some areas of the eastern United States.
As with other grasses, the pollen can cause allergic rhinitis (hay fever) in some people.
The grass is popularly grown to satisfy the craving of domestic cats to chew grass, hence its colloquial name cat grass.
The seeds were first collected by Rogers Parker in Hertfordshire; this was then developed by the agricultural reformer Coke of Norfolk. Parker's estate, Munden, near Bricket Wood, was inherited by the botanist George Hibbert.
The caterpillars of many butterfly species feed on cock's foot, including:

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