Build a Soil Earthworm Castings (1 cuft)

BuildASoil Worm Castings are simply the best source of castings we've ever had the pleasure of working with. This is because it tests so consistently balanced 🐛

Worm Castings will ship for free when you have 2 or more items in your cart, including this one.

Check out the soil testing we do on this material. This testing is consistent and well balanced, allowing you to use these castings confidently without fear. No other company goes to this length to ensure results. Don't settle for non-tested brands! High in calcium and low in sodium, these castings are ideal for your soil. 🌿