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Dry Amendments

132 products

Dry amendments and minerals to build and recharge living soil.

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Regular price $33.00
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Mealworm Frass is a powerful soil amendment from The Soil Makers design...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.  Neem seed meal is a dual-purpose amendment that combines pest managem...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Basalt Micro-Fines — re-mineralize your soil with basalt rock dust for ...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Fish Meal 7-4-0 — 62% Protein from The Soil Makers delivers a slow-rel...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.The Soil Makers Soybean Meal is a granular, certified non-GMO fertilize...
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Regular price from $11.00
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Elemental Sulfur — Pelletized sulfur to correct sulfur deficiencies an...
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Regular price from $30.80
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Potassium Sulfate — premium SOP granules from The Soil Makers, enginee...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Soil Re-Amend Kit — refresh and revitalize your existing living soil w...
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Regular price $15.00
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Copper Sulfate powder from The Soil Makers provides a precise copper m...
Regular price from $37.40
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Fish Bone Meal — a marine-based phosphorus and calcium fertilizer for ...
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Regular price from $27.50
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Gypsum - Solution Grade from The Soil Makers is a Diamond K Premium 97...
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Regular price $20.90
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Zinc Sulfate Monohydrate Powder from The Soil Makers delivers essentia...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Seabird Guano from The Soil Makers is a phosphate-dense soil amendment...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. K-Mag Granular is a naturally mined fertilizer that delivers three ess...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Boron 10% Granules — precise boron nutrition for thriving home gardens....
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Manganese Sulfate from The Soil Makers is a fast-acting manganese sourc...
Regular price $16.50
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Magnesium Sulfate Epsom Salt — fast-acting Mg & S fertilizer for th...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Kelp Meal OG is a premium seaweed-based soil amendment harvested from ...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Aragonite/Oyster Shell Flour — premium coral-sea calcium to fuel soil ...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. ENDGAME Flowering mix — a bloom-focused nutrient blend designed to pus...
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Regular price from $48.40
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Regular price $0.00
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Nutrient & Mineral Blend from The Soil Makers is a rigorously test...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Gypsum by The Soil Makers is a naturally mined calcium sulfate soil am...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Calcium Montmorillonite Clay — a trace mineral colloidal silicate from...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Bio-Char Raw — unlock durable soil carbon, resilient crops, and a thriv...
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Regular price from $28.00
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. AZOMITE® is a natural mineral amendment sourced from an ancient deposi...
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Regular price from $93.50
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. The Elite LOS Mixing Blend from The Soil Makers is a complete soil-mix...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Alfalfa Meal Organic Alfalfa Meal provides a rich source of nitrogen, ...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.The Large Nutrient Pack now comes in a 42lb bag. The KiS Organics Nutri...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Fertoz is a rock-phosphate–derived phosphorus fertilizer from The Soil...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Crab/Lobster shell chunks — Organic Crab Shell (5-3-0) a dry, nutrient...
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Regular price from $40.00
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.Crab/Lobster Shell Flour is a finely ground crustacean meal crafted to ...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.A precise, nutrient-rich top-dress designed to fuel flowering and fruit...
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⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order.KiS Organics Bloom Booster gives your plants that extra boost in flower...
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Regular price $11.99
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Down To Earth Solution Grade Langbeinite 0-0-21.5 – 1 lb Down To Earth Solution Grade Langbeinite is a premium, water-soluble potassium-sulfate-magnesium fertilizer ideal for fertigation, foliar fe...
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Regular price $9.99
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Crown Jewels® All Purpose is a 5-5-5 fertilizer with 5% Calcium for well-rounded nutrition in any garden. Ideal for houseplants, pre-amending soils, top-dressing, or compost teas. Approved for orga...
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Regular price $49.99
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BuildASoil Craft Blend BuildASoil's highest and most reviewed product. Growers just like you trust craft blend because they trust BuildASoil. Imagine having a workshop full of the finest, cleanest ...
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Regular price $25.99
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12 Species Of Cover Crop Seeds - Non GMO - All Natural This Recipe has been tweaked over the years and is finally where we like it. Perfect for Raised beds or Container plants. Almost 60% Clover Se...
Regular price $29.99
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BuildASoil's new high Phosphorous blend is a 4-in-1 product designed to be a diverse amendment with a focus on organic sources of Phosphorus.  Organic phosphorus sources are few and this blend is a...
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Regular price $26.99
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Enhance your soil's performance with our premium-grade Bio Char, a revolutionary product designed to improve soil health, water retention, and plant growth. At BuildASoil, we offer two types of Bio...
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Regular price $16.99
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Enhance your garden's productivity with Wiggle Worm Soil Builder Worm Castings! These nutrient-rich castings will improve soil structure and provide essential microorganisms for healthier plants. 1...

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