Help prevent calcium deficiencies that can diminish plant development.
Down To Earth’s Oyster Shell is an all-natural and high-quality source of the essential plant nutrient calcium. Ancient oyster shells are carefully harvested and then ground into small, medium, and coarse particles. These irregular shapes provide a sustained release of this valuable nutrient. Down to Earth Oyster Shell also aids in improving the structure of soils and building optimum tilth.
Components: Ground oyster shell
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