Down To Earth Oyster Shell An all natural source of high quality Calcium that is ground into varying sizes to ensure an immediate and sustained release of this valuable nutrient. Calcium promotes strong root development, improves nutrient uptake and boosts plant immunity. Oyster Shell builds optimum tilth by improving the texture, aeration and water penetration of soils. 5 lb. Box OMRI Listed (Organic Materials Review Institute) CDFA Listed (Registered Organic Input Material)

DOWN to EARTH ORGANICS Oyster Shell Meal 5 lb

Down to Earth

802-453-GRWS (4797)

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Down To Earth

Oyster Shell


An all natural source of high quality Calcium that is ground into varying sizes to ensure an immediate and sustained release of this valuable nutrient. Calcium promotes strong root development, improves nutrient uptake and boosts plant immunity. Oyster Shell builds optimum tilth by improving the texture, aeration and water penetration of soils.

5 lb. Box

OMRI Listed (Organic Materials Review Institute)
CDFA Listed (Registered Organic Input Material)