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Barnyard Grass

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Barnyard grass is an annual grassy weed.


Barnyard Grass grows in wet soils and full sunlight.

These are some of the conditions that make it suitable for hardy planting zones between 4 and 10. The USDA Plant Hardiness Zone Map shows the various regions that offer friendly conditions for barnyard grass growth. 



The barnyard grass blooms mainly in summer through autumn in most regions.

In general, the blooming period is between July and December. It produces flower heads that can extend up to 100mm in height with oval or pyramid-like shapes. The flower heads that it produces develop several branches.

The flower heads grow in different colors, and they look like knots of tough hair. The following are some of the colors that you are likely to experience in barnyard grass:

• Yellow

• Purple

• Green

• Pink

• Blackish pigmentation


Height at Maturity

The barnyard grass can grow to a height of 1500mm in the presence of all the favorable growth conditions. Its stem alone can take up to 900 mm without bending or weakening. This condition is stronger where the soils are moist throughout the growth period, and the climatic conditions are like those in tropical regions.


Preferable Soil Type

The barnyard grass can grow in different types of soil, provided all the other factors remain constant. It grows even in soils that have poor water retention capacities. However, the best soil type for barnyard grass is moist soil.


Sun or Shade

Barnyard grass does not tolerate any form of shade in its growth. A good supply of sunlight is necessary for its healthy growth, but it should not be too severe like it is characteristic of drought conditions. When the plant is mature, shade conditions may not be a big bother after all.


Plant Description

The scientific name of barnyard grass is Echinochloa crus-Galli) and it comes from the Poaceae family (grasses). Barnyard grass grows straight and produces flat, soft leaves with a bright green color. The plant has its origins in the Asian tropics, but it also grows in other areas under the names barnyard millet and cockspur grass.

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