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

Shipping calculated at checkout.

Low stock - 8 items left
Backordered, shipping soon

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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These guys rock (no pun intended ).

These guys are the best. Fastest shipping ever. Fresh products and super great customer service

Wow—thank you for the speedy praise! :rocket: We’re thrilled our shipping kept pace with your excitement and that the products arrived fresher than a morning harvest. Our team works hard to pair prompt delivery with top‑notch support, so your shout‑out means a lot. If you ever need anything else (or just want to geek out about soil health), we’re here and happy to help. Enjoy, and grow on! :seedling:

Great customer service

I needed oyster shell flour for my bocce core but wasn’t sure of the quantity. I called and was helped immediately. I placed my order and received it within a week. Very professional and friendly!

Thank you for taking the time to share your experience with us. We’re delighted to hear that you found our team helpful and professional, and that your order arrived promptly.
Your kind words mean a lot to us, and we’re glad we could assist you with the oyster shell flour for your bocce court. If you have any more questions or need further assistance in the future, please don’t hesitate to reach out.
Thank you for your business, and we look forward to serving you again soon!

Hard to find locally

Everyone in my geographical area was sold out of oyster flour. I took a chance and ordered it online it came quickly and was reasonably priced you can’t beat that

Happy to hear that we provided you what you needed at a fair price and our shipping team got it out to you quickly! Thank you for your business, we greatly appreciate it!

Wonderful Product.

I have never had such personal service when making an online purchase. The important thing for me was the product, which I was delighted that you carry. Thank you for your prompt shipment. Would highly recommend your company.

Our goal is to treat every customer how we would like to be treated when dealing with an online company! We are happy that our personal touch is making a difference. Thank you for your business, we look forward to serving you again soon!

Excellent product and service

Ordering was easy and shipping was fast.

Great to hear that you were able to get your Oyster Shell Flour order placed easy and you received your product quickly! We strive for every order to be processed and shipped same day! Thank you for your business, we look forward to serving you again soon!

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.

Came promptly, looks like it

Came promptly, looks like it will work for the job and last long enough to get it done, yay!

Love to hear it! :rocket: Glad the DeBudder Bucket Lid arrived fast and feels up to the task. When you put it to work, we’d love an update on how it goes. Thanks for choosing Rocky Mountain BioAg:registered:! :seedling:

New Product

I am a TLO grower(true living Organics) and just started using Quantum and there other product's and my veg plants seem to be doing great. Jim

Thanks so much, Jim! :raised_hands:
Love hearing this from a TLO grower—Quantum Growth Organic Light pairs beautifully with living soils by supporting the microbial engine you’ve already built. Thrilled your veg plants are thriving!

We appreciate you choosing Rocky Mountain BioAg:registered: and can’t wait to hear how things look as you keep growing. :seedling:
—The RMBA Team | Biological…Beyond Organic:registered:

Noticeable results in days.

:seedling: We love hearing that! Noticeable results in just days is exactly what the Microbe Manna:registered: ABC Lawn & Landscape Care Program is all about—jumpstarting soil biology so your lawn can show fast, healthy growth.

Thank you for sharing your success and for trusting Rocky Mountain BioAg:registered:. We’re grateful to have you in the Biological…Beyond Organic:registered: family!

—The RMBA Team

Works great

I've been using this for years and has been doing a great job!

Thank you so much for your continued trust and support! :herb: We’re thrilled to hear Tick Killz has been working great for you year after year. Consistent results are exactly what we aim for, and your feedback means a lot to us!

So far, so good. The

So far, so good. The product applied well through a tractor sprayer. Now, we wait for rain, and see the results on our hayfields.

Thank you for sharing your experience with AgroThrive LFN! We’re glad to hear the application went smoothly with your tractor sprayer. A good rain can really help activate the nutrients, so we’re excited to hear how your hayfields respond. Please keep us posted on your results — we love seeing before-and-after stories from our customers!

Oyster Shell Flour | RMBA

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