Crafted by nature and perfected by worms, Minnesota Worm Farm’s Black Gold Worm Castings are a living soil amendment teeming with beneficial microbes, enzymes, and organic nutrients.
Our castings are screened, chemical-free, and biologically tested to ensure optimal microbial diversity. Use as a top dress, compost tea base, or soil conditioner to enrich plant roots and improve soil structure naturally.
From houseplants to raised beds, this is nature’s plant food in its purest form — no fillers, just 100% worm-cast perfection.
**Ingredients:** 100% Pure Worm Castings
**How to Use:**
- Mix 10–20% by volume into potting soil or garden beds.
- Top dress ¼ inch around the base of established plants.
- Brew into compost tea for a microbial boost.
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