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Hearne Seed

Atom Prairie Grass Coated


Atom Prairie Grass Coated


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Product Description

Atom Prairie Grass Coated(Bromus willdenowii)

For quantities over 500 lbs. (more than 10 bags of 50 pounds) please contact us by Phone at 800 253 7346 or click here for a price quote and delivery options. 

Prairie grass is a short lived perennial grass that produces high quality, endophyte-free pasture, hay or silage. Atom Prairie Grass Coated  was bred for increased tiller density, over other prairie grasses, making it more tolerant of close grazing with improved persistence.  Atom has excellent late winter/early spring growth and good heat tolerance which allows Atom to continue to grow well into the summer months.  This quality feed can be utilized during calving, and for grazing of young stock over summer.  Unlike other grasses, its large seedhead is palatable to grazing livestock.  With a lax rotational grazing method, Atom Prairie Grass can persist 3 to 4 years.

The coating is there to help with germination and planting plus it really helps with root formation. It increases your roots through a process called Mycorrahizae. Mycorrhiza is a symbiotic association between a fungus and a plant. This refers to the role that the fungus has in the plants rhino sphere. It plays a important part in plant nutrition, soil biology and soil chemistry. The coating also helps in root absorption. This is a excellent choice to have on your seed. 



  • Atom is an alternative short rotation option for high quality feeding requirements.
  • In well drained soils, of acceptable pH, Atom performs throughout the year as a quality feed, for grazing and hay production.
  • Under irrigation, Atom extends its cool season production into the hottest summer regimes, from central California to Texas.  This makes Atom a quality alternative to ryegrass.
  • Atom has a higher tiller density than other prairie grass options
  • Atom is winter active in Mediterranean climates yet can tolerate winter frost, down to approximately 10°F.  

High summer heat tolerance, with high protein content makes Atom an ideal pature for growth in young livestock and lactating dairy cattle. 

With no endophyte it is also perfect for horse grazing. Atom has a high nutrient uptake capacity.

"As documented by Texas A & M, Atom can easily utilize soil Nitrogen (N) making it an excellent remediation grass for dairies, feedlots, and food processing facilities." 

Atom is the ideal companion grass in alfalfa stands. Cutting cycles and growth patterns of the two species are similar. This makes harvest simple and the end product palatable. 

Atom can produce up to 12,000 lbs DM / acre in hay regimes. 

Atom is the option for cool season grass production in hot summer regions. 




  • Seed in fall, while soil temperatures are warm, or in spring.
  • Atom Prairie Grass will be most productive in fertile-free draining soil and will require a minimum rainfall of 34 inches if grown without irrigation.
  • For best establishment, Atom should be planted at ¼” depth into a moist firm seedbed when soils are above 50 degrees Fahrenheit. Plant at 35-50 pounds per acre
  • Plant at 30 pounds per acre, with 30 lbs oats on dairy regimes
  • Plant at 25-30 pounds per acre, in other pastures.
  • Atom is compatible with chicory, plantain as well as red and white clovers.



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