SoundGRO is the natural choice fertilizer product for your landscaped areas and vegetable gardens. SoundGRO® Contains 100% natural organic nitrogen, plus nutrients and micronutrients that are vital for the healthy growth of your plants.
SoundGRO® has many benefits over regular chemical fertilizers:
Slow-release formula works over a longer period of time, decreasing the need for frequent fertilizing
Low salt index can be applied even in the hottest, driest weather without risk of burning your plants
Improves soil structure
SoundGRO® fertilizer is manufactured at the Chambers Creek Regional Wastewater Treatment Plant from by-products of the wastewater treatment process known as biosolids. SoundGRO® meets the U.S. Environmental Protection Agency's (EPA) highest standards for biosolid safety and is classified as Class A "Exceptional Quality" product. SoundGRO® is a not-for-profit program of Pierce County Planning and Public Works.
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