Natures Wisdoms Earthworm Castings are 99% pure and weed seed & nematode free. Organic certification has been applied for. Worms are raised in closely monitored environments and fed specific diets. Worms eat nutrient rich fruit and vegetable food scraps, pulverized egg shells and discarded tea and coffee grounds which become compost as they pass through the worm's body. Once they exit the worm, they become nutrient rich compost great for plants. Analysis: Total Nitrogen 1.00% Phosphorus 0.50% Soluble Potash (K2O) 0.20% Application Recommendations: Potting Soil & Bed Preparation: Mix into soil at 5 lbs. Per 100 square feet. Compost Tea: Mix 1-2 Cups to 1 gallon water. Allow to sit for at least 12 hours, stirring or shaking occasionally. Use with regular watering program. General Recommendations: Use normal sanitary measures when handling earthworm castings; wash hands before touching food, eyes, etc.