Black Gold® Earthworm Castings 8 Quart
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One of the purest forms of sustained release plant food. Castings won't burn even the most delicate plants, are naturally odor-free and improve soil structure, aeration and drainage. They are rich in beneficial bacteria and microbes to help plants absorb nutrients. Mix in soil when potting or topdress on garden beds. Can also be added to water to make compost tea fertilizer. OMRI Listed.