Coastal Oyster Shell Flour – High-Calcium Natural Soil Amendment Plant Derived Seed Treatment: 1 part REV

Seed Treatment: 1 part REV + 1–2 parts water

Perfect for both large-scale and home gardens seeking healthy

amplify nutrient cycling

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Coastal Oyster Shell Flour – High-Calcium Natural Soil Amendment Plant Derived Seed Treatment: 1 part REVCoastal Oyster Shell Flour is an all natural, micronized source of coarse to fine calcium carbonate (CaCO) specifically processed for living soil, commercial crop production, and organic farm management. Sourced from high purity, ocean derived oyster shells, this premium soil builder delivers a sustained, multi season release of plant available calcium while gently raising and buffering soil pH over time. Unlike standard agricultural lime, Oyster