Posts
The 4 Classes of Compost Quality
Not all compost products are created equal, and it is silly to buy them as if they are. For a long time, there were no clear criteria set for determining unique specifications and soil amendments in compost. This made it challenging for landscape architects and other bulk compost purchasers to effectively communicate what they needed…
STA Certifications
Compost Classes I, II, and III are all types of compost products that earn a U.S. Composting Council Seal of Testing Assurance (STA). (Class IV composts undergo primary and secondary nutrient testing, but are not STA-certified, and should only be used in agricultural applications.) What does STA certification mean? STA Certification Requirements for Compost Manufacturers…
Nutrients – What Plants Need and Why!
Plants, like other living things need nutrients to keep growing. Most fertilizer packages list three plant nutrients-nitrogen, phosphorus, and potassium (N-P-K, in that order); Nitrogen spurs on leafy growth. With too much nitrogen, some plants will not flower; too little and plants may have pale-green or yellowish older leaves. Phosphorus encourages good blooming and root…
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