Name: Oyster Shell Flour | RMBA
Brand: Rocky Mountain BioAg
SKU: OYSTER4
Price: 9.0 USD
Availability: InStock

Oyster Shell Flour Label for 4 or 10 Pound Package

$9.00

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Rocky Mountain BioAg® Oyster Shell Flour: Natural, Slow-Release Calcium for Soil Health and Bocce Courts

Elevate your soil’s health with Rocky Mountain BioAg® Oyster Shell Flour, a 100% pure, slow-release calcium supplement derived from finely ground Pacific oyster shells. Ideal for organic growing, this natural soil amendment provides essential lime (calcium carbonate) to balance soil pH, enhance plant vitality, and support long-term growth.

Why Choose Rocky Mountain BioAg® Oyster Shell Flour?

Beyond calcium, this soil conditioner supplies valuable trace elements—zinc, copper, molybdenum, and nickel—contributing to a balanced nutrient profile and supporting healthy, resilient plants. Its fine, slow-release formula ensures efficient, lasting results with fewer applications, making it an economical choice for gardeners and landscapers alike.

Rocky Mountain BioAg® Oyster Shell Flour also excels as a bocce ball court surfacing material. With its finely ground texture, it allows for smooth, straight tracking, optimal drainage, and fast rolling, delivering a high-performance playing surface.

Key Benefits:

100% Pure Calcium Source: Finely ground Pacific oyster shells boost soil calcium levels.
Trace Minerals Included: Supplies essential micronutrients like molybdenum, copper, nickel, and zinc.
Balances pH: Naturally raises soil pH, ideal for acidic soils and healthy plant development.
Long-Lasting Formula: Slow-release calcium for extended soil conditioning with minimal reapplication.
Dual Use: Excellent for bocce ball court surfaces, providing smooth play and efficient drainage.

Choose Rocky Mountain BioAg® Oyster Shell Flour to enrich your soil naturally or to create a premium bocce court surface that’s both durable and responsive.

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Biological... Beyond Organic®

Organic is just the start

RMBA is committed to provide natural and organic products that support healthy soils. Even if a product is not listed as 'organic' you can rest assured that it will help, not hurt your soil.

Don't take our word for it

★★★★★
This has been the best pumice i have ever used!!! Besides the great customer service (*****)
Ricardo S
McAllen, TX

★★★★★
Rocky Mountain BioAg has the best customer service! Prompt delivery and product support. Thanks !
Joe B
South Kingstown, RI

★★★★★
I have a greenhouse that unfortunately does not get the ideal sunlight due to its location on the north side of my home. I have been using Rocky Mountain BioAg’s Quantum Growth Organic Total for over a year and have seen a dramatic increase in plant growth and vegetable yield compared to past years. Highly recommend the product.
Jack C
Sarasota, FL

★★★★★
Excellent customer service, quick response, fast turnover and shipment of merchandise and product was exactly what was described on website and what I wanted. Great Company!
Jessica S
Harrisonburg, VA