Impact Organics Organic Earthworm Castings are 100% pure vermicompost with no fillers, offering a premium all-purpose plant food and soil amendment. These castings come from carefully tended worms fed only organic black humus and proprietary organic worm food in an environment free of garbage, yard waste, and manure. The product is OMRI certified for organic use and completely odor-free.

This natural fertilizer is rich in essential nutrients including nitrogen, phosphorous, magnesium, potassium, calcium, copper, zinc, iron, and manganese. The castings boost microbial life in the soil, improve soil structure to retain more water and nutrients, and encourage enhanced root development. They help avoid nitrogen burn on plants and can be used as a top dressing, worked into soil at planting time, mixed into potting soil, or brewed into compost tea.

Suitable for all types of plants whether in-ground or in containers, including flower beds, vegetable gardens, lawns, shrubs, perennials, annuals, and houseplants. The 12-pound bag provides versatile application options with recommended rates varying by plant type, from 1/4 cup for small plants to 10 pounds per 100 square feet for lawns.