Oyster Shell Flour – Organic


Oyster Shell Flour – Organic


How to use:

For soil building or top dressing, apply at a rate of 1 cup per cubic foot of soil.

SKU: BASOSF Category: Tag: Brand:

BuildASoil Oyster Shell Flour

Oyster Shell Flour A high quality soil conditioner which consists of 96% calcium carbonate and many micronutrients, Oyster Shell provides a long-lasting, steady release of nutrients to help regulate pH levels, improve fertilizer uptake, promote healthy cellular structure and enhance soil tilth. Oyster Shell is also helpful in creating more active habitats for soil microbes in compost piles and worm bins.

This product is not what it would appear from the name, i.e. it’s not a product made from crushed oyster shells but rather it’s a particular oyster shell mined from the San Francisco Bay from ancient sea deposits made up of very tiny and fragile oyster shells. 

Additional information

Weight N/A
Dimensions N/A

4lb, 13lb, 25lb(Bucket), 40lb


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