FOR AMG USE ONLY! 100% Naturally organic compost made by worms no chemicals. 100% pure! Organic Worm Castings are the rich digested soil that red wiggler worms leave behind. Savvy gardeners know them to be chock-full of organic plant food, plus beneficial microbes that aid plant growth and help fight off disease. As an amendment, castings are completely finished and unlike some other creature manures, don’t smell strongly (they smell like forest soil) nor will they burn plants due to too much direct nitrogen. Castings do contain 4% to 5% more nitrogen than your average garden soil, but in a slow release form due to the mucous the worms secrete as they digest (bait fishermen and most kids know the slime we’re talking about). Worms introduce uncountable numbers of beneficial microbes and bacteria into the finished product, guaranteeing the healthiest soil possible. In addition, castings contain humic acid which aids plant nutrient absorption.