Natural and Organic

Many Sun Gro products are
considered “Natural & Organic.”

The FDA defines ‘natural’ as a product containing nothing artificial or synthetic. Our products adhere to this definition and are further defined as being harvested or obtained from nature and/or natural sources. The term organic has two conventional meanings. First, it applies to organic products obtained from living organisms, but in a more formal sense, it refers to products bearing the OMRI Listed® seal. These products are formally reviewed and approved for organic growing by the Organic Materials Review Institute (OMRI) of Eugene, Oregon. OMRI Listed® products are produced without conventional pesticides, synthetic fertilizers, or bioengineering.
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‘Natural’ Products

Components such as perlite, gypsum, limestone and RESiLIENCE®  silicon are defined as ‘natural’ which means they are not carbon based but they are obtained from natural deposits and processed without the use of synthetic chemicals – these materials are mined, ground up and screened, and expanded in the case of perlite.

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‘Organic’ Products

Organic products are defined by Sun Gro as ingredients that are carbon based, were once alive and are without the addition of synthetic chemicals. Some examples are peat moss, bark, organic fertilizers and organic wetting agents.

† For more information about regulatory definitions go to www.aapfco.org and/or your individual state Department of Agriculture.
These definitions may or may not be acceptable in the state of California.


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Many Sun Gro products and ingredients are OMRI Listed® and are acceptable as USDA NOP input material. The Organic Materials Review Institute (OMRI) is a 501 (c)(3) non-profit organization and generates income through fees collected for the review of these products. OMRI provides professional, independent, and transparent review of materials and processes to determine their suitability for producing, processing, and handling organic food and fiber. OMRI Listed® products have been reviewed by OMRI and determined to be in compliance with the USDA National Organic Program (NOP) standards and may be used in an organic growing system. For more information about OMRI, visit their website at www.omri.org.