KIS Organics

Wollastonite - FREE SHIPPING

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WOLLASTONITE is a multipurpose soil amendment that will help your plants resist powdery mildew, supply available calcium and silicon and is proven to increase yields and plant integrity.  Wollastonite neutralizes soil acidity and can be used as a substitute for agricultural limestone. 

Wollastonite is a naturally occurring mineral that is a combination of calcium, silicon and oxygen. This amendment is made by crushing, drying and milling Wollanstonite ore. 


Application rates vary according to soil conditions and plant requirements. Apply Wollastonite according to your soil test results, taking into consideration the soil pH, as well as the calcium and magnesium requirements, and silicon supplementation.


Free shipping in Continental USA only.  Does not include Alaska, American Samoa, Micronesia, Guam, Hawaii, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico, US Virgin Islands, Armed Forces Americas, Armed Forces Europe or Armed Forces Pacific.


Wollastonite Heavy Metal Test

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