Harris® Diatomaceous Earth Food Grade - 4lb - No Duster Metal Halide This blend of organic seaweed

This blend of organic seaweed and vitamin B1 combine to optimize soil conditions for greater root mass

and 3 gallon sizes)

These slabs come in clearly marked UV resistant poly sleeves for ease of use

Azotobacter vinelandii

This multi-purpose Organic insecticide & fungicide is listed for Organic use by OMRI (Organic Materials Review Institute)

Harris® Diatomaceous Earth Food Grade - 4lb - No Duster Metal Halide This blend of organic seaweed100% ground freshwater diatomaceous earth with absolutely no additives or fillers. Harris Diatomaceous Earth Food Grade 4lb powder is listed with the Organic Materials Review Institute and is composed of ground freshwater diatomaceous earth mined in Nevada and packaged in Georgia.