Worm castings are a 100% natural soil amendment and garden fertilizer for indoor plants and outdoor plants. Organic earthworm castings are rich in essential nutrients like nitrogen, phosphorus, and potassium, as well as trace minerals that improve soil conditions for better overall plant mass.
Worm castings can be used to boost houseplants in decline by re-potting them in a blend of worm castings and potting soil. Worm poop contains more than 150 plant vitamins and trace minerals, as well as beneficial enzymes, hormones, and bacteria that plants need. The crumbly structure of castings also helps promote good soil aeration.