ARBICO Organics Earthworm Castings Total Grow Media Volume:1 lb. Each roll is made of

Each roll is made of PET material that is highly durable

Viable spores in substantial amounts to ensure root colonization

Weather-proof stainless-steel enclosure

and provides a vital balance of natural hormones

ARBICO Organics Earthworm Castings Total Grow Media Volume:1 lb. Each roll is made ofOne of Nature's Wonderful Gifts. Earthworm Castings Add Microbial Life and Nutrients To Your Soil. Worm castings are a natural byproduct of vermiculture (composting with worms) used as a fertilizer and soil amendment. Our worm castings are produced by red wigglers and provides macro and micronutrients to the soil in a slow feeding form. Castings can be applied as a top dressing, brewed in a tea, or mixed into the soil medium. The sustainable