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Azalea & Camellia Fertilizer 10-5-10Azalea & Camellia Fertilizer 10-5-10 is a completely water-soluble, chloride-free fertilizer formulated for azaleas, camellias, rhododendrons, gardenias, blueberries, and other acid-loving plants. Its balanced 10-5-10 NPK delivers nitrogen and potash for season-long maintenance feeding, with modest available phosphate suited to established plants. The formula supplies iron as a DTPA chelate, which stays...From $ 24.99 -
Feather Meal Fertilizer 12-0-0Organic Feather Meal 12-0-0 is a slow-release organic nitrogen fertilizer made from hydrolyzed poultry feathers. It supplies 12% total nitrogen as water-insoluble keratin protein, released gradually over 3 to 4 months as soil microbes break it down — one of the longest natural nitrogen curves among common organic fertilizers. Because the nitrogen must...From $ 24.99 -
Fish Bone Meal Fertilizer 4-17-0Organic Fish Bone Meal 4-17-0 is a CDFA-registered organic phosphate fertilizer derived from fish tankage. It delivers 17% available phosphate (P₂O₅) and 4% water-insoluble nitrogen in a single ingredient — one of the more concentrated organic granular phosphate sources available to gardeners. Phosphate supports root development, flowering, and fruit set, making fish...From $ 24.99 -
Kelp Meal Fertilizer 2-0-4Organic Kelp Meal 2-0-4 is a slow-release soil amendment and biostimulant made from Ascophyllum nodosum, a cold-water seaweed. It supplies 2% nitrogen and 4% soluble potash (K₂O) along with 60+ ocean-sourced trace minerals — iron, manganese, zinc, copper, boron, molybdenum, and more — in naturally balanced proportions, plus naturally occurring auxins, cytokinins,...From $ 21.99 -
Micro Green 2-0-3Micro Green 2-0-3 is a water-soluble micronutrient fertilizer concentrate that delivers a complete trace-element profile for hydroponic, coco coir, and soilless growing. It supplies seven trace elements — iron, zinc, manganese, copper, boron, molybdenum, and calcium — in a single powder, replacing the need for multiple separate micronutrient supplements. Iron, zinc, manganese, and...From $ 29.99 -
Chelated Zinc EDTA FertilizerChelated Zinc EDTA is a professional-grade, 100% water-soluble micronutrient fertilizer that corrects zinc deficiency in plants. Its guaranteed analysis is 14% zinc, held as a stable EDTA chelate that keeps the zinc plant-available up to roughly pH 7.0 — well past the point where zinc sulfate begins to lock up in alkaline...From $ 29.99 -
Magnesium Nitrate Fertilizer 11-0-0Magnesium Nitrate Fertilizer 11-0-0 is a CDFA-registered, 100% water-soluble fertilizer that delivers two essential nutrients in a single application: 11% nitrate nitrogen and 9.6% magnesium. The nitrogen is supplied entirely as nitrate, so it is immediately plant-available with no microbial conversion step and stays available even in cool soils. Magnesium is the...From $ 26.99
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Blossom Green Fertilizer 2-6-8Blossom Green 2-6-8 is a dry, 100% water-soluble hydroponic bloom fertilizer formulated for the flowering and fruiting stage. Its 2-6-8 NPK keeps nitrogen at a maintenance level while loading available phosphate (P₂O₅) and soluble potash (K₂O) — the two nutrients flowering plants demand most. Phosphorus supports bud initiation, flower density, and energy...From $ 24.99 -
Copper Sulfate CrystalsCopper Sulfate Crystals 99% Pure is a high-purity copper sulfate pentahydrate (CuSO₄·5H₂O) in a fully water-soluble crystalline form. Lab tested at 99% purity with no fillers or binders, it delivers a predictable, consistent copper concentration per measured dose — important for applications where accurate dosing matters. It is one of the most versatile...From $ 21.99 -
Monoammonium Phosphate Fertilizer 12-61-0Monoammonium Phosphate (MAP) 12-61-0 is a technical-grade, 100% water-soluble fertilizer and one of the most concentrated water-soluble phosphorus sources available. Each pound delivers 61% available phosphate (P₂O₅) and 12% ammoniacal nitrogen, dissolving completely with no residue. Phosphorus supports root development, flowering, and fruit set, and the ammonium-form nitrogen helps acidify the...From $ 29.99
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Monoammonium Phosphate Fertilizer 11-52-0Monoammonium Phosphate (MAP) 11-52-0 is a CDFA-registered, agricultural-grade granular fertilizer that delivers high-analysis phosphorus for soil application. Each pound supplies 52% available phosphate (P₂O₅) and 11% ammoniacal nitrogen in uniform granules that spread cleanly through rotary and drop spreaders. Phosphorus supports root development, flowering, and fruit set, and the ammonium-form nitrogen...From $ 21.99 -
GypsumGypsum (Calcium Sulfate) is a premium mined agricultural soil amendment that supplies 22.5% calcium and 18% sulfur from natural calcium sulfate dihydrate (CaSO₄·2H₂O) at 97% purity. Unlike lime, gypsum delivers calcium without raising soil pH, making it the right choice for soils where pH is already adequate or alkaline. Gypsum works...From $ 19.99 -
Potassium Sulfate Fertilizer 0-0-53Potassium Sulfate Fertilizer 0-0-53 is a solution-grade, 100% water-soluble potassium fertilizer (K₂SO₄) that delivers 53% soluble potash (K₂O) and 17% sulfur in a single crystalline form. It is one of the most concentrated chloride-free potassium sources available. Potassium regulates water movement, enzyme activity, and sugar transport into developing fruit, supporting fruit size,...From $ 21.99
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Zinc SulfateZinc Sulfate 35.5% is a 100% water-soluble micronutrient fertilizer that corrects zinc deficiency in plants. Supplied as zinc sulfate monohydrate (ZnSO₄·H₂O), it delivers 35.5% actual zinc and 16.5% sulfur in a single application — among the highest zinc concentrations of any dry source, about 54% more zinc per pound than heptahydrate forms....From $ 19.99
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Cal-Mag Plus 2-0-0 ConcentrateCal-Mag Plus 2-0-0 is a 100% water-soluble calcium, magnesium, and iron supplement built for hydroponics, coco coir, and reverse-osmosis water — the three growing conditions where calcium and magnesium deficiency is most likely. It supplies 3.2% calcium, 1.2% magnesium, 0.1% EDTA-chelated iron, and 2% nitrogen from nitrate sources. Calcium supports cell-wall...From $ 33.99
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Calcium Nitrate Fertilizer 15.5-0-0 (Ammonia Calcium Nitrate 15.5-0-0)Calcium Nitrate Fertilizer 15.5-0-0 is a 100% water-soluble source of 15.5% nitrogen and 19% calcium — two of the most in-demand plant nutrients delivered in a single dissolving step. The nitrogen is almost entirely fast-acting nitrate, plant-available the moment it dissolves, and the formula contains no phosphate or potash. Nitrogen drives chlorophyll...From $ 24.99