Gaia Green Oyster Shell Flour
Gaia Green Oyster Shell Flour
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Gaia Green Oyster Shell Flour

Regular price
$19.00
Sale price
$19.00
Regular price
$18.00
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Benefits

  • An excellent source of slow release calcium.

  • Equivalent to limestone for ameliorating soil acidity.

  • Renewable resource.

Guaranteed Minimum Analysis

Calcium (Ca)....................................36.0%

Neutralizing value (CaCO3)..............96.0%

Passes 100 mesh TYLER Screen.......30%

Derived From

Oyster Shell Flour.

Directions for Use

Gardens and Landscapes: For reducing soil acidity, broadcast and incorporate 0.5 - 6.75 kg per 10 m2 (1 - 13.8 lbs per 100 ft2). For equal pH adjustment sandy soils require a lower rate compared to clay soils and those high in organic matter. Consult an agronomist to determine appropriate rates for your garden soil.

Field: Consult an agronomist to determine an appropriate application rate. Typical rates are between 560 to 6700 kg per ha (500 to 6000 lb per acre).

Top-dressing hanging baskets, potted plants, and planter boxes: Mix in 15 ml per 4 L (1 tbsp per gallon) of soil or growing media. Apply monthly or as desired. Effects of this product on soil pH may take in excess of 1 year to be fully realized. 

The Gaia Green Oyster Shell Flour is far and away, one of our most popular items. People can't seem to get enough of it.

Inventory Last Updated: Apr 04, 2025

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