Organic Crab Shell Natural Fertilizer Calcium Booster 3-3-0
Why Customers Love It:
✔ Fast-Acting Formula
✔ Direct from Our Facility – Always Fresh
✔ Ships Fast in 1–2 Days
Pairs well with
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
At GS Plant Foods, we do our best to get your order to you quickly and affordably.
We primarily ship through USPS Priority Mail, which is fast and reliable. For larger or heavier orders, we may use FedEx Ground to save you on costs while still delivering on time.
If you prefer a different shipping method, no problem — just reach out before placing your order, and we’ll do our best to accommodate your request.
Processing Time:
Most orders ship within 1–2 business days. You’ll receive a confirmation email with tracking info as soon as your order is on its way.Shipping Costs:
Shipping fees are calculated at checkout based on weight, size, and destination.Sales Tax:
We currently collect 7% sales tax on all orders shipped to addresses in Florida. If tax laws change and we’re required to collect tax in other states, we will comply accordingly. -
Return Information
We want you to be completely happy with your purchase — and your plants to be even happier.
If your product arrives damaged or defective, just send us a photo and we’ll replace it right away — free of charge. No need to return anything.
We stand behind the quality of everything we sell. If something’s not right, we’ll make it right — it’s that simple.
If you have questions about a product or need help choosing the right one, don’t hesitate to contact us before ordering. We're happy to help!
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If you have any questions at all, please leave us a message using the form below. A member of our team will be in touch soon!
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Give your garden the ultimate natural boost! GS Plant Foods Organic Crab Meal is a premium, slow-release fertilizer designed to enrich your soil and power the growth of tomatoes, vegetables, flowers, and all your favorite plants.
Rich in essential minerals, this natural soil amendment works directly with your garden's ecosystem to build stronger, healthier plants from the roots up.
Key Benefits:
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Slow-Release Nutrition (3-3-0 NPK): Delivers a steady, reliable supply of nitrogen and phosphorus to fuel growth without the risk of burning your plants.
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Packed with Cal-Mag: Naturally provides essential Calcium and Magnesium for robust plant cell walls and vibrant, resilient foliage.
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Supercharges Root Health: The unique crab shell chips give roots a physical element to engage with, promoting the rapid growth of beneficial mycelium. This helpful fungus acts as an extension of your roots, hunting for water and vital nutrients (Nitrogen, Carbon, Potassium, Phosphorus) and delivering them straight to the plant.
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Natural Nematode Defense: Crab meal naturally helps suppress harmful root-knot nematodes, keeping your root systems safe and healthy.
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100% Organic: Derived purely from natural crab shells. Safe, effective, and eco-friendly.
How to Use:
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Small Gardens/Beds: Apply 0.5 to 1 lb per 100 sq. ft.
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Large Areas/Lawns: Apply 5 to 10 lbs per 1,000 sq. ft.
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Pro Tip: For maximum absorption, apply directly to the soil and gently work it into a depth of 6-8 inches.
Specifications:
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Weight: 8 Lbs
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Formulation: 3-3-0 NPK
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Source: 100% Natural Crab Meal
What Our Customers Are Saying
Thank you so much for Orchid Love. I bought mine on Amazon.com. I have been using it for the last five months. My orchids haven't looked better. Then I discovered a secret using your Orchid food. I have been dripping it down the old spikes of my 14 orchids not in flower for the last month. Now I have 5 of my orchids sending up new spikes that should be blooming around Christmas and 3 shooting secondary spikes off the old spikes. Even my other house plants love it. Thank you so much.
— Mary Yarwood
I received this product in a very timely manner. After the first application this seems to be working on my fall garden in zone 7. The lettuce, cauliflower, and broccoli all responded to a foliar spray of 1 Tbsp mixed in a half gallon of water. I also applied it to my tomato plants that had slowed down due to the colder weather and was surprised to see all of the plants start setting new blooms and fruit. I was at the point of actually pulling the tomato plants out for the year but look to maybe get a few more tomato's off each plant now!
— Theman
Hi, just received your kelp and humic acid per Amazon.I scoped them at 40 and 100x shortly after opening and could not believe the diversity compared to a competitor's similar products.I provide the most thorough organic lawn/soil treatments in the Gainesville Fl area, and looking forward to continuing business."Thanks for your product
— Chad Freeman
So far, my plants and microgreens seem to respond well--new growth and deeper color--to the spray I mixed with water and store in the refrigerator.
— Greenpinky
My only complaint is that the bottle could be designed better so that the liquid doesn't drip everywhere and get a little messy even when using a funnel to catch extra liquid.
It smells strong & stains, so prepare your mixture outside or on a plastic covered table.
Why Choose GS Plant Foods?
✅ Certified Organic Excellence
Every product reflects our pledge to purity, free from synthetic additives. We prioritize ingredients that nourish plants and protect ecosystems.
🔬 Innovation You Can Trust
Blending cutting-edge plant science with time-tested organic methods, we create solutions that tackle modern challenges—boosting yields, resilience, and root vitality.
🤝 Community Trusted
Decades of glowing reviews and partnerships prove our promise: reliable, transformative results, season after season.
FAQs
Please read our FAQs page to find out more.
Why do organic fertilizers like yours have lower NPK values than synthetic fertilizers?
Synthetic fertilizers artificially spike NPK levels far beyond natural amounts, much like vitamin pills overload the body with nutrients it can’t fully absorb. Organic fertilizers, however, workwithnature—enhancing plants’ ability to uptake nutrients efficiently without excess runoff. This means lower NPK numbers deliverhigher effectivenesswhile protecting ecosystems from pollution caused by synthetic waste.
How should I store your products to maximize shelf life?
Store products in a cool, dry place away from direct sunlight and extreme temperatures. Ensure lids are tightly sealed after use. While most formulas have an indefinite shelf life, always mix only what you need for immediate use to maintain potency.
Do I need to water my lawn after applying your liquid fertilizers?
No watering is required! Our liquid formulas absorb quickly into the soil. For best results, apply early in the morning to allow 2-3 hours of soaking time before rain or irrigation. This ensures maximum nutrient retention without runoff.
Is it safe to harvest vegetables right after using your products?
Yes! Most of our products have a zero-harvest interval, meaning you can pick produce immediately. However, we recommend waiting 2-3 days after application for optimal nutrient absorption and flavor development.
How do organic fertilizers reduce environmental harm compared to synthetics?
Synthetic fertilizers overload plants with nutrients they can’t fully absorb, leading to harmful runoff that pollutes waterways. Organic formulas, like ours, mimic nature—delivering balanced, bioavailable nutrients that plants use efficiently. Think of it as feeding your garden a wholesome meal instead of forcing it to “overeat” synthetic additives.