Oyster Shell Flour

(1 customer review)


Soil Enhancers and Soil Conditioners will add Vitamins and Minerals back into your nutrient depleted soil. Enriching your garden with essential plant nutrients in both Micro and Macro Form.

Not Avail in California


Product form:

Dry powder

NPK analysis:


Other product highlights:

Product is high in calcium carbonate and other macro and micro-nutrients.

Product provides slow-release (over long periods of time) of nutrients that help regulate soil pH levels, improve fertilizer uptake, promote healthy plant cells and improve soil tilth.

Product aids in improving habitats for beneficial soil microbes. Good addition to compost piles and worm bins.

Product designation:


Primary function/use:

Soil conditioner. Build-up nutrients in soil.

Well suited for:

Amending and enhancing the soil.

When and where to use:

Start with early season soil preparations and supplement as needed during the grow cycle.


Ensure bag is properly sealed and stored in cool, dry, dark place.

How to apply:

Vegetable Gardens: 4-6 lbs. per 100 sq. ft.

Trees & Shrubs: 1 lb. per one (1) inch diameter of tree.

Perennials & Roses: 1/2 cup per each new plant.

Additional information

Weight N/A

1 review for Oyster Shell Flour

  1. Alex

    This is a solid replacement for dolomite lime and excellent source of calcium. Use this along with gypsum and oyster shell meal and completely replace your dolomite (dolomite is way to high in mag.) Great soil amendment!

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