130 iron sulphate fertiliser on offer(Disclaimer)
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➤ Last checked on 11.10.2026
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22% discount
GRANDAN 3 Lb Ferrous Sulfate Heptahydrate - 3/16 Inch FeSO4*7H2O Granules - 20% Iron (Fe) Stable and Easy to Store - Organic Lawn Fertilizer for Vegetables and Plant Growth
Set Includes -3 pound of ferrous sulfate heptahydrate containing 20% iron (Fe) 12% sulfur (S) and is a water-soluble granules. It is also easy to store and use
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20% discount
Covington Chelated Liquid Iron Concentrate (32oz) Lawn & Garden Liquid Iron & Nitrogen Supplement for Plants, Shrubs & Trees, Treats Deficiency, Discoloration, Stunted Growth & Root Stress
Correct Yellowing & Chlorosis Fast: Iron-deficient plants often show pale leaves, green veins, and weak growth. This liquid iron blend targets deficiency symptoms quickly to restore rich color and vitality.
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14% discount
Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 10 Pounds
Animal Feed Grade
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10% discount
21-0-0 Ammonium Sulfate Fertilizer (18lbs) (Granular)
Lush, Dark Green Lawn: With its fast-release nitrogen, this fertilizer works quickly to create a lush, dark green lawn. Perfect for lawns that need a vibrant, healthy appearance in no time.
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9% discount
Southern Ag Aluminum Sulfate (Acidifies Soil), 5 LB Size: 5 LB
Size: 5 LB
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8% discount
Farmer’s Secret Liquid Iron for Lawns and Gardens - Chelated Liquid Iron Supplement - for use on All Types of Grass, Plants and Trees (32oz)
High-quality liquid Iron - Correct soil deficiencies fast with our concentrated liquid iron formula
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8% discount
Supply Solutions Sulfate of Potash 0-0-50 Fertilizer - Potassium Fertilizer for Indoor, Outdoor, Flowers, Gardens, Fruit, Lawn - Plant Food with Plant Nutrients (50 Pounds)
Ultra-fine and Highly Soluble for Rapid Absorption: Our yard fertilizer features ultra-fine powder that dissolves quickly in water. This ensures efficient nutrient uptake by plants and promotes fast growth and development.
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8% discount
Hi-Yield Aluminum Sulfate
SOIL ACIDIFIER FOR PLANTS: Ideal for acid-loving plants like hydrangeas and azaleas. Helps create optimal soil conditions for vibrant blooms and healthy growth in your garden beds.
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8% discount
GRANDAN 6 Lb Ferrous Sulfate Heptahydrate - 3/16 Inch FeSO4*7H2O Granules - 20% Iron (Fe) Stable and Easy to Store - Organic Lawn Fertilizer for Vegetables and Plant Growth
Set Includes -1 pound of ferrous sulfate heptahydrate containing 20% iron (Fe) 12% sulfur (S) and is a water-soluble granules. It is also easy to store and use
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7% discount
Hi-Yield Iron Sulfate for Lawns & Gardens 3.25 lb – Granular Soil Supplement – Supports Green Color & Soil Conditioning – 1,000 sq ft Coverage (2 Pack)
2 PACK FOR SEASONAL USE - Includes two 3.25 lb bags—ideal for multiple applications across lawns, shrubs, flowers, and garden beds.
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6% discount
GRANDAN 2 Lb Ferrous Sulfate Heptahydrate - 3/16 Inch FeSO4*7H2O Granules - 20% Iron (Fe) Stable and Easy to Store - Organic Lawn Fertilizer for Vegetables and Plant Growth
Set Includes -2 pound of ferrous sulfate heptahydrate containing 20% iron (Fe) 12% sulfur (S) and is a water-soluble granules. It is also easy to store and use
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Iron II Sulphate, Ferrous Sulphate Damp grade, Fertilizer, 500g - By Inoxia
Plant Growth: It's used for lowering the pH of a high alkaline soil for accessing soil's nutrients. It's known to improve lawn care. In horticulture, it can be mixed with compost and dug into soil to create a store. Ferrous sulfate can also be used as lawn conditioner. It can also be used to eliminate silvery thread moss.
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Fertilome 32OZ Chelated Iron (Pack of 2)
ferti-lome
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Iron II Sulphate, Ferrous Sulphate Damp grade, Fertilizer, 100g - By Inoxia
Plant Growth: It's used for lowering the pH of a high alkaline soil for accessing soil's nutrients. It's known to improve lawn care. In horticulture, it can be mixed with compost and dug into soil to create a store. Ferrous sulfate can also be used as lawn conditioner. It can also be used to eliminate silvery thread moss.
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Walt's Organic Fertilizer Co. Elemental Sulfur Pellets 5 LB for Acid-loving Plants, Soil Acidifier
Lower soil pH
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Southern Ag Copper Sulfate Granular Crystals, 1 Pound
Controls Surface Algae
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Lesco 12-0-0 Chelated Liquid Iron Plus 2.5 Gallons
Enjoy a Super Dark Green Lawn
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Iron Granules - (20% Ferrous Sulfate) - 25 Pound Bag
CONTAINS: 20% Iron from Ferrous Iron Sulfate.
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Walt's Elemental Sulfur Pellets (10 LB)
Lower soil pH
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16-16-16 All Purpose Fertilizer 15 Pounds by Garden Naturals
Great size for small to large gardens or lawns
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Sulfur Fertilizer, Liquid Sulfur Amendment for Greener Leaves, 8 oz
Made for Sulfur Supplementation – Formulated to supply sulfur for plants needing improved soil nutrition.
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Potassium Sulfate Fertilizer, Premium Potassium and Sulfur, 8 oz (250mL)
Made for Potassium Supplementation – Formulated to supply potassium for plants with increased nutrient demand.
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Pure Original Ingredients, Calcium Sulfate, 2 Lb
Pure Original Ingredients Calcium Sulfate can be used in multiple ways
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Hi-Yield (34624) Zinc Sulfate, 3.25 lbs
Prevents and corrects rosette deficiency in pecan trees which causes deformity of fruit.
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Sulfate of Potash 0-0-50 Granular Fertilizer (50 Lbs.)
Strengthens the plant making it less susceptible to disease and adverse conditions.
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Monterey NLG7122 Dr Soil Acidifier Granules Iron and Elemental Sulfur Acidic Fertilizer, 21 lb
Corrects Iron deficiency - when your garden or lawn is yellowing in color, that's a sign of an iron deficiency. Dr. Iron helps to correct this deficiency. The product is made up of 22% iron and 55% sulfur.
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Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 5 Pounds
Animal Feed Grade
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Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 50 Pounds
Fertilizer/Animal Feed Grade
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Southern Ag All Purpose Granular Fertilizer 10-10-10, 5 LB Size: 5 LB
Size: 5 LB
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10-10-10 Fertilizer for Trees & Shrubs, Balanced NPK + Iron & Micros, 8 oz
Balanced 10-10-10 Tree Nutrition – Formulated with equal NPK to support tree and shrub health.
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Ferrous Sulfate Heptahydrate - FeSO4*7H2O - 20% Iron - Very Soluble - 20 Pounds
Animal Feed Grade
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Earthborn Elements Ammonium Sulfate (2.5 lb), Soil Additive, Source of Nitrogen
Earthborn Elements Ammonium Sulfate should be used in a well-ventilated area
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10-10-10 Fertilizer for Trees & Shrubs, Balanced NPK + Iron & Micros, 32 oz
Balanced 10-10-10 Tree Nutrition – Formulated with equal NPK to support tree and shrub health.
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21-0-0-24 Ammonium Sulfate Fertilizer 25 Pounds by Garden Naturals
Large Bulk Size - Great Value
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![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Premium 8-4-8 Acidic Fertilizer for Hydrangea with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [12 OZ]](https://cdn.dealcheck.org/productimages/M/9/L/B0FDFRBL9M.jpg)
𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Premium 8-4-8 Acidic Fertilizer for Hydrangea with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [12 OZ]
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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ENVY Magnesium Sulfate Plant Food | Fertilizer for Plants | Water Soluble Epsom Salts for Houseplants, Roses, Shrubs and Lawns (0.5 lb)
100% WATER SOLUBLE - we use only top-quality ingredients that allow for maximum solubility in warm or cold water, for optimal dilution ratios
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21-0-0-24 Ammonium Sulfate Fertilizer 5 Pounds by Garden Naturals
Great Size and Very Manageable
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Sulfate of Potash, High-Potassium Supplement for Plants, 8 oz
Made for Potassium Support – Formulated to supply potassium for plants during flowering, fruiting, and stress periods.
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𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Premium 8-4-8 Acidic Fertilizer for Hydrangea with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth - 1 Quart
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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SOP 0-0-50 | Sulfate of Potash Solution Grade Ultrafine Fertilizer Powder (5 Pounds)
Sulfate of Potash 0-0-50. Guaranteed Analysis: Soluble Potash (K2O) =52%, Sulfate - Sulfur (SO4-S) = 18%
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21-0-0-24 Ammonium Sulfate Fertilizer 15 Pounds by Garden Naturals
Great Value
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10-10-10 Fertilizer for Vegetables, Complete Liquid Plant Food, 8 oz
Balanced 10-10-10 Nutrition – Formulated with equal NPK to support steady vegetable plant growth.
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Ferrous Sulfate for Plants – Liquid Iron Sulfate for Greener Leaves, 8 oz
Made for Iron Support – Formulated to supply iron for balanced plant nutrition.
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![Ferrous Sulfate [FeSO4] 99% ACS Grade Powder 1 Lb in Two Space-Saver Bottles](https://cdn.dealcheck.org/productimages/Y/Y/K/B014I4FKYY.jpg)
Ferrous Sulfate [FeSO4] 99% ACS Grade Powder 1 Lb in Two Space-Saver Bottles
Weight: 16 Ounces (1 Pound)
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𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth - 5 QUARTS
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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20 Pounds - Sodium Molybdate - Na2MoO4*2H2O, >99% Pure
Fertilizer/Animal Feed Grade
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CountryMax 10LB Ammonium Sulfate 21-0-0 Fertilizer for Lawn & Garden
[HIGH NITROGEN LAWN FERTILIZER]: 21-0-0 ammonium sulfate fertilizer delivers a strong nitrogen source for lawns, grass, and plants, helping support green color and steady growth
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![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth [16 OZ]](https://cdn.dealcheck.org/productimages/X/K/J/B0FDFS7JKX.jpg)
𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth [16 OZ]
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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Ferrous Sulfate for Plants – Liquid Iron Sulfate for Greener Leaves, 32 oz
Made for Iron Support – Formulated to supply iron for balanced plant nutrition.
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The Andersons Elemental Sulfur pH Down - 40 lbs. Covers 13,300 sqft.
Formulated for lawns with high pH levels, helping to balance soil acidity for optimal turf health
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𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth - 2 QUARTS
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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Lutz Corporation Maple-Birch Tree Fertilizer Spikes, 40 Pack
COMPLETE TREE FOOD SPIKES: Lutz Ultra Citrus Spikes offer a balanced tree fertilizer spike formula tailored for trees and shrubs. With essential nutrients like Manganese (20%), Combined Sulfur (16%), Ammoniacal Sulfur (4%) and Nitrogen (4%), these plant food spikes combat common deficiencies and promote lush growth in your garden.
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Ferrous Sulfate for Plants – Liquid Iron Sulfate for Greener Leaves, 1 Gal
Made for Iron Support – Formulated to supply iron for balanced plant nutrition.
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The Andersons Iron Drip 4-0-0 Liquid Lawn Fertilizer with Micronutrients and Fulvic Acid (32 fl oz)
Liquid lawn fertilizer with fulvic acids and micronutrients iron, magnesium and sulfur for optimal nutrition
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Iron-Tone Plant Supplement, 2-0-3, 5-Lb.
5 Pack : 5 LB, 2-0-3, Iron Tone, All Natural Iron Supplement
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𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth - 3 QUARTS
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (8 oz - 0.5 lb.)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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Soil Acidifier - pH Correction 90% Elemental Sulfur for Lawns, Blueberry Bushes, Hydrangeas, Vegetables, and Other Acid Loving Plants. (18 lbs.)
Optimal pH for Special Plants: Soil Acidifier is expertly tailored to create the perfect acidic conditions necessary for lawns, hydrangeas, and blueberry bushes.
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Iron-Tone Plant Supplement, 2-0-3, 5-Lb.
4 Pack: 5 LB, 2-0-3, Iron Tone, All Natural Iron Supplement
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![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth [12 OZ]](https://cdn.dealcheck.org/productimages/3/S/S/B0FDFW1SS3.jpg)
𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur - Indoor & Outdoor Soil Acidifier for Miracle Growth [12 OZ]
SPECTACULAR YEAR-ROUND BLOOMS – Achieve vibrant flowers in every season with our powerful 8-4-8 balanced fertilizer, enriched with iron and sulfur for brilliant hydrangeas, azaleas, and more.
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Big Cannahuna Nutrients Cal-Mag Max with Iron 454 Gram
100% Organic water soluble fertilizer supplement
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (5 qts. - 10 lbs.)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (1 qt. - 2 lbs.)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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10-10-10 All Purpose Fertilizer - Made in USA - 2% Iron + Micronutrients Plant Food for Flower Gardens, Fruit & Vegetable Gardens, Trees & Lawns!
PREMIUM QUALITY INGREDIENTS – Cz Garden 10-10-10 is All-Purpose Fertilizer for Indoor/Outdoor Plants, Flower Gardens, Fruit and Vegetable Gardens, Holistic Herbs, Trees and Lawns!
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Greenway Biotech, Inc. Manganese Sulfate Monohydrate Fertilizer- 100% Water Soluble Contains 31% Manganese Ideal for Hydroponics & Aeroponics Agriculture- Palm Tree Plant Fertilizer (5 Pounds)
100% WATER SOLUBLE: This manganese sulfate fertilizer dissolves easily in water, making it an ideal choice for hydroponic and aeroponic agriculture. Great for Palm and Citrus Trees to prevent "frizzle top"
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Vitamina Terrestre Organic Fertilizer - Fern Class A - Fruit Growth Accelerator - NPK, Calcium, Sulfur, Magnesium - 150g
Specific Organic Fertilizer for Fruit. Accelerates plant growth by up to 60%. Based on poultry manure. Rich in NPK, Calcium, Sulfur and Magnesium. Manufacturer has IBD seal organic products
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (1/2 qt. - 1 lb.)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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Old Cobblers Farm Wicked Growth Ammonium Sulfate - Fertilizer and Soil Acidifier for Azaleas, Blueberries and Magnolia. Boosts Nitrogen for Healthy Plants and Lush Lawns (5/10/15/20) (5 lbs)
Nitrogen-Rich Formula for Vigorous Growth: Our Ammonium Sulfate Fertilizer stands out as a powerhouse of nitrogen, delivering essential nutrients crucial for promoting robust plant growth and maintaining a lush, healthy lawn. This premium formula ensures that your plants receive the vital elements needed to thrive and flourish.
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5% discount
Organic Elemental Sulfur Fertilizer 90% 5 Pounds Acidic Soil Amendment, Hydrangea & Blueberry Fertilizer, Ideal for Garden Soil & Lawn Care - Lancaster Agricultural Products
Enhanced Plant Soil Biodiversity: Boost your garden soil's biodiversity with Sulfur, promoting a balanced ecosystem for thriving plants. This friendly soil amendment increases the variety of organisms in your soil, enhancing overall health.
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (4 qts. - 8 lbs.)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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4-10-10 Bulb and Bloom Fertilizer - Made in USA - 2% Iron + Micronutrients Plant Food for Indoor/Outdoor Flower Gardens and Trees
PREMIUM QUALITY INGREDIENTS – Cz Garden 4-10-10 is a high purity, premium all-purpose fertilizer for flower bulbs, indoor/outdoor flowers, lawn, and garden vegetables.
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (2 qts. - 4 lbs)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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Ferti-Lome Slow Release Nitrogen Lawn Fertilizer 15-0-15 with Iron – for Centipede & Multiple Grass Types – Covers 4,000 sq ft per Bag (2 Pack)
2 PACK FOR EXTENDED LAWN COVERAGE - Includes two 16 lb bags, each covering up to 4,000 sq ft—ideal for larger lawns or multiple applications.
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Supply Solutions IronMaxx Granular Fertilizer - All Purpose Plant Food with Iron and Sulfur, Slow Release Garden Fertilizer for Lawn, Vegetables, Flowers & Trees, Outdoor Plant Fertilizer (40 Pounds)
All Purpose Fertilizer That Covers Everything: If you’re tired of switching products, this all purpose fertilizer works across your entire yard. From lawns to beds, this all purpose plant food handles it all. A reliable granular fertilizer and garden fertilizer that fits into your routine as your go-to outdoor plant fertilizer and plant fertilizer outdoor solution.
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (10 qts. - 20 lbs.)
Rapid Soil Acidification: Quick-Release elemental sulfur quickly lowers soil pH, ideal as a soil acidifier for hydrangeas, blueberries, citrus, roses, and evergreens.
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LawnStar Liquid Iron (32 OZ) for Plants - Multi-Purpose, Suitable for Lawn, Flowers, Shrubs, Trees - Treats Iron Deficiency, Root Damage & Color Distortion – EDTA-Free, American Made
PROFESSIONAL-GRADE: Our EDTA-free, sugar-based Liquid Chelated Iron for plants ensures fast and efficient iron delivery, even in alkaline soils with a pH of up to 9.5, where other solutions fail.
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Rooted Leaf Agritech Root Anchor - Carbon Based Humic and Kelp Fertilizer, Nitrogen Free with Potassium to Improve Soil and Enhance Plant Growth for Garden Plants Grass Lawns - 5 Gallon
IMPROVES ROOT ARCHITECTURE – Root Anchor improves the shape and structure of roots, allowing for higher nutrient uptake and better plant growth.
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Supply Solutions IronMaxx Granular Fertilizer - All Purpose Plant Food with Iron and Sulfur, Slow Release Garden Fertilizer for Lawn, Vegetables, Flowers & Trees, Outdoor Plant Fertilizer (25 Pounds)
All Purpose Fertilizer That Covers Everything: If you’re tired of switching products, this all purpose fertilizer works across your entire yard. From lawns to beds, this all purpose plant food handles it all. A reliable granular fertilizer and garden fertilizer that fits into your routine as your go-to outdoor plant fertilizer and plant fertilizer outdoor solution.
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Supply Solutions 21-0-0-24S Ammonium Sulfate for Deep Green Plants - Soil Acidifier for Blueberry Blooms, Azalea and Magnolia Tree Fertilizer - Sulfur for Plants Nitrogen Fertilizer (25 Pounds)
Produce Deep Green Growth with Colorful Blooms: Our blueberry fertilizer act as nutrient-rich formula, infusing vitality into every leaf, resulting in a deep, captivating green hue, colorful blooms that signifies health and vigor.
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Chelated Iron for Plants – Liquid Iron Supplement for Green Leaves, 8 oz
Made for Tree Iron Support – Formulated to supply iron to trees experiencing chlorosis
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Ammonium Sulfate High Nitrogen Fertilizer for Plants Rapid Growth, 5lb
NITROGEN NUTRIENT PLANT FOOD: Unlike other garden & lawn fertilizers, our ammonia sulfate fertilizer has a 21-0-0 ratio with 21% nitrogen and 24% sulfur for improved soil health & greener growth.
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Humboldts Secret Greenify, 12-0-0 Nitrogen & 6% Iron, Liquid, 32 Ounce
Packaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance. Elevate Lawn Health - Our Greenify liquid iron spray, serving as both iron fertilizer and grass fertilizer for lawn care, fortifies your grass with essential nutrients. Designed to provide iron for grass lawn vitality, it revitalizes your lawn with a lush, green appeal. With chelated liquid iron our spray facilitates swift absorption by grass roots, optimizing nutrient uptake.
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Supply Solutions 21-0-0-24S Ammonium Sulfate for Deep Green Plants - Soil Acidifier for Blueberry Blooms, Azalea and Magnolia Tree Fertilizer - Sulfur for Plants Nitrogen Fertilizer (10 Pounds)
Produce Deep Green Growth with Colorful Blooms: Our blueberry fertilizer act as nutrient-rich formula, infusing vitality into every leaf, resulting in a deep, captivating green hue, colorful blooms that signifies health and vigor.
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XIXISUSU Iron Sulfate for Plants - Ferrous Sulfate Powder to Correct Chlorosis & Yellow Leaves, Fast-Acting Iron for Plants, Trees, Lawns & Shrubs - Essential Nutrient Supplement (8 oz)
This high-purity iron sulfate provides essential iron for plants to effectively combat yellowing leaves. Use our ferrous sulfate for plants to restore vibrant green color and support vigorous growth in your garden and houseplants.
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Quick-Release Soil Acidifier - Elemental Sulfur & Gypsum Mix - Hydrangea & Blueberry Fertilizer, Aluminum Sulfate Alternative, Improves Blue Hydrangea Color (8 oz - 0.5 lb.)
Fast & Effective Soil Acidifier: Quickly lowers soil pH, creating optimal conditions for hydrangeas, blueberries, and azaleas to thrive; superior alternative to aluminum sulfate and miracid.
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The Andersons Professional Ecofusion™ Natural 11-0-5 Biosolid Fertilizer with Iron and Micronutrients 18 lb. Bag - Covers up to 5,000 sqft.
An all-natural, professional-grade biosolid fertilizer
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Monterey Dr. Iron 22% Iron Supplement, 7 lb with Spoon
FAST-ACTING IRON SUPPLEMENT – Monterey Dr. Iron contains 22% iron and 55% sulfur, ideal for correcting iron deficiency (chlorosis) that causes yellowing in lawns, trees, shrubs, flowers, and vegetables.
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KMS 0-0-21.5 (Potassium Magnesium Sulfate) Fertilizer - Plant Food - The Best for Low Magnesium Soils Prone to Nutrient Loss - Ideal for Lawns, Garden, Vegetable, and Fruit Crops (10 Pounds)
Revitalize Your Soil with Essential Nutrients: Restore magnesium-poor soils with KMS 0-0-21.5 fertilizer. This potent blend of potassium, magnesium, and sulfur delivers vital plant nutrients directly to the roots, ensuring lush, thriving plants and robust growth every season.
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Supply Solutions 21-0-0-24S Ammonium Sulfate for Deep Green Plants - Soil Acidifier for Blueberry Blooms, Azalea and Magnolia Tree Fertilizer - Sulfur for Plants Nitrogen Fertilizer (50 Pounds)
Produce Deep Green Growth with Colorful Blooms: Our blueberry fertilizer act as nutrient-rich formula, infusing vitality into every leaf, resulting in a deep, captivating green hue, colorful blooms that signifies health and vigor.
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Quick-Release Soil Acidifier - Elemental Sulfur & Gypsum Mix - Hydrangea & Blueberry Fertilizer, Aluminum Sulfate Alternative, Improves Blue Hydrangea Color (3 qts. - 6 lbs.)
Fast & Effective Soil Acidifier: Quickly lowers soil pH, creating optimal conditions for hydrangeas, blueberries, and azaleas to thrive; superior alternative to aluminum sulfate and miracid.
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Almighty Iron | (8 fl. oz.) | Makes up to 50 gallons & Covers Up to 50,000 sq. ft. | Liquid Iron - 10% Iron Amino Acid Complex | Foliar Applied Iron for Plants |
10% Iron derived from Iron Amino Acid Complex
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The Andersons Professional Ecofusion™ Starter 16-21-4 Biosolid Fertilizer with Iron and Micronutrients 18 lb. Bag - Covers up to 5,000 sqft.
An all-natural, professional-grade biosolid fertilizer
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XIXISUSU Iron Sulfate for Plants - 32 oz Ferrous Sulfate Powder to Correct Chlorosis & Yellow Leaves, Fast-Acting Iron for Plants, Trees, Lawns & Shrubs - Essential Nutrient Supplement (32 oz)
This high-purity iron sulfate provides essential iron for plants to effectively combat yellowing leaves. Use our ferrous sulfate for plants to restore vibrant green color and support vigorous growth in your garden and houseplants.
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Quick-Release Soil Acidifier - Elemental Sulfur & Gypsum Mix - Hydrangea & Blueberry Fertilizer, Aluminum Sulfate Alternative, Improves Blue Hydrangea Color (1 qt. - 2 lbs.)
Fast & Effective Soil Acidifier: Quickly lowers soil pH, creating optimal conditions for hydrangeas, blueberries, and azaleas to thrive; superior alternative to aluminum sulfate and miracid.
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5% discount
Espoma Organic Iron-Tone 3-0-3 Organic Fertilizer and Plant Food to Help Correct Iron Deficiency (Chlorosis). 5 lb. Bag. Turns Yellow to Green, Non Staining Iron - 2 Pack
FOR USE ON: Use Iron-tone organic fertilizer anytime iron deficiency is seen; use for lawns, shrubs, trees, annual and perennial flowers. Will not stain patios or walkways
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Supply Solutions | 0-0-50 Plus 17% Sulfur | Golden K-Max Sulfate of Potash (SOP) - Granular Fertilizer | High Potassium Plant Fertilizer for Indoor and Outdoor Garden - Stronger Roots (5 Pounds)
Complete nutrition in one scoop: 17-18-18 fertilizer for lawns, gardens, and containers. This balanced fertilizer 17-18-18 feeds roots and top growth with equal NPK plus essential micros (boron, manganese, zinc) and humic acid fertilizer support to help plants use nutrients efficiently. Ideal for vegetable beds, flower borders, shrubs, and trees.
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The Andersons Professional Ecofusion™ Plus 20-0-5 Biosolid Fertilizer with Humic Acid, Iron and Micronutrients 18 lb. Bag - Covers up to 5,000 sqft.
A professional-grade biosolid fertilizer. Contains quick-release and MUtech slow-release nitrogen for both immediate and sustained feeding
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Yield Titan High Purity Ferrous Sulfate Heptahydrate (FeSO4.7H2O) - Used for Water Treatment and Animal Feed - Highly Soluble (1lb)
【Essential Nutrient】: Yield Titan High Purity Ferrous Sulfate Heptahydrate provides a vital source of iron, an essential mineral crucial for plant growth and development. This nutrient is key for overall plant health, ensuring robust and vibrant growth across various crops.
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Liquid Iron for Lawns, Multi-Purpose and Suitable for All Gardens, 1 Gal
PROFESSIONAL-GRADE: Our EDTA-free, sugar-based Liquid Chelated Iron for plants ensures fast and efficient iron delivery, even in alkaline soils with a pH of up to 9.5, where other solutions fail.
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Pacific Pelican's Ferrous Sulfate Heptahydrate (FeSO4.7H2O) - A Versatile Compound Used for Animal Feed, Soil Amendment, Water Treatment, Industrial Applications (3lb)
High Quality: Crystalline form ensures consistent performance and reliability.
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Supply Solutions | 0-0-50 Plus 17% Sulfur | Golden K-Max Sulfate of Potash (SOP) - Granular Fertilizer | High Potassium Plant Fertilizer for Indoor and Outdoor Garden - Stronger Roots (40 Pounds)
High-potassium nutrition for balanced plant development: this sulfate of potash (SOP) provides potassium sulfate with sulfur to support root strength, stem structure, and fruit and flower formation. A low-chloride potash fertilizer suitable for vegetables, fruit trees, ornamentals, and lawns where chloride sensitivity may be a concern.
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Yield Titan High Purity Ferrous Sulfate Heptahydrate (FeSO4.7H2O) - Used for Water Treatment and Animal Feed - Highly Soluble (0.5lb)
【Essential Nutrient】: Yield Titan High Purity Ferrous Sulfate Heptahydrate provides a vital source of iron, an essential mineral crucial for plant growth and development. This nutrient is key for overall plant health, ensuring robust and vibrant growth across various crops.
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USEDDIG 2 LB Ferrous Sulfate Heptahydrate Fertilizer- 20% Iron (Fe), 12% Sulfur, 100% Water Soluble Powder- Plant Food for Indoor/Outdoor Plants Vegetables and Flower Gardens
USEDGDIG
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Pacific Pelican's Ferrous Sulfate Heptahydrate (FeSO4.7H2O) - A Versatile Compound Used for Animal Feed, Soil Amendment, Water Treatment, Industrial Applications (2lb)
High Quality: Crystalline form ensures consistent performance and reliability.
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Ferrous Sulfate Fertilizer for Plants, Ferrous Sulfate Heptahydrate Granules 20% Iron (Fe) - Plant Food to Help Greener Grass, Lawn, shrubs, Trees and Gardens (3 pounds)
OULLYY
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USEDDIG 6 LB Ferrous Sulfate Heptahydrate Fertilizer- 20% Iron (Fe), 12% Sulfur, 100% Water Soluble Powder- Plant Food for Indoor/Outdoor Plants Vegetables and Flower Gardens
USEDGDIG
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TrueNute Iron Chelate FeEDDHA 6% - Advanced Solution for Thriving Aquaponics Systems 16 Oz for Aquaponics Fertilizer Hydroponics Fertilizer Traditional Garden Fertilizer
[Highly Effective] Contains 6% chelated iron (EDDHA) to efficiently correct iron deficiency in all plant types. Stops yellowing of plant/tree leaves
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Opulent Blends Chelated Liquid Iron (1 Gallon) - Liquid Chelated Iron for Lawns, Trees, and Shrubs - 6.5% Iron - EDTA Free - Made in The U.S.A
Opulent Blends
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Ammonium Sulfate 21-0-0 Fertilizer with Nitrogen and Sulfur | Lowers pH in Alkaline Soil | Ideal for Lawns, Hydrangeas, Azaleas, Blueberries and Acid-Loving Plants | Made in USA | 2 lb Bag
QUICK ACTING NITROGEN: Experience the immediate impact of quick-acting nitrogen on your plants. Our Ammonium Sulfate 21-0-0 delivers a swift infusion of nutrients, ensuring your plants receive the nourishment they need for vigorous growth.
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GRANDAN 12 Lb Ferrous Sulfate Heptahydrate - 3/16 Inch FeSO4*7H2O Granules - 20% Iron (Fe) Stable and Easy to Store - Organic Lawn Fertilizer for Vegetables and Plant Growth
GRANDAN
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Copper 5 Pounds Micronutrient Supplement for Plants – Natural Soil Amendment for Healthy Growth, Enzyme Support & Vibrant Color – Lancaster Agricultural Products
For Use On: Vegetable gardens, field crops, fruit trees, lawns, and pastures
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Ammonium Sulfate 21-0-0 Fertilizer, Water Soluble Ammonia Sulfate Fertilizer, High Nitrogen 21-0-0 for Lawn, Crops & Garden (3 LB)
Premium Ammonium Sulfate 21-0-0 fertilizer with 21% high nitrogen, boosts lush leaf growth for lawns and crops.
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21-0-0 Ammonium Sulfate Fertilizer – 40 lbs
Fast-Acting Green-Up & Growth – DARK MATTER 21-0-0 delivers a powerful nitrogen boost for rapid turf, garden, and plant growth, producing deep green lawns, vibrant flowers, and nutrient-rich vegetables.
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Ammonium Sulfate 21-0-0 Fertilizer, Lawn Fertilizers to Lower pH Level in Alkaline SOI, High Nitrogen for Rapid Plant Growth & Deep Green Color (3 lb)
High Nitrogen Formula: Ammonium Sulfate 21-0-0 fertilizer delivers 21% nitrogen content for rapid plant growth, lush foliage development, and deep green color in lawns and gardens
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Ammonium Sulfate 21-0-0 Fertilizer, Water Soluble Ammonia Sulfate Fertilizer, High Nitrogen 21-0-0 for Lawn, Crops & Garden (2 LB)
Premium Ammonium Sulfate 21-0-0 fertilizer with 21% high nitrogen, boosts lush leaf growth for lawns and crops.
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Ammonium Sulfate 21-0-0 Fertilizer, Lawn Fertilizers to Lower pH Level in Alkaline SOI, High Nitrogen for Rapid Plant Growth & Deep Green Color (2 lb)
High Nitrogen Formula: Ammonium Sulfate 21-0-0 fertilizer delivers 21% nitrogen content for rapid plant growth, lush foliage development, and deep green color in lawns and gardens
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Chelated Iron for Trees, Liquid Iron Supplement for Greener Foliage, 32 oz
Helps Restore Green Leaf Color – Supports deeper green foliage and improved plant vigor.
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CountryMax 50LB Ammonium Sulfate 21-0-0 Fertilizer for Lawn & Garden
[HIGH NITROGEN LAWN FERTILIZER]: 21-0-0 ammonium sulfate fertilizer delivers a strong nitrogen source for lawns, grass, and plants, helping support green color and steady growth
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Chelated Iron for Trees, Liquid Iron Supplement for Greener Foliage, 8 oz
Helps Restore Green Leaf Color – Supports deeper green foliage and improved plant vigor.
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Espoma IT5 Iron-Tone 5 lb. with My Garden Pool PH Soil Test Strips 20 ct, and My Garden Pool Superior Gardening Claw Gloves and Garden-IQ, Smart Gardening AI Assistant!
Helps correct iron deficiency for deeper, richer green color
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Supply Solutions | 0-0-50 Plus 17% Sulfur | Golden K-Max Sulfate of Potash (SOP) - Granular Fertilizer | High Potassium Plant Fertilizer for Indoor and Outdoor Garden - Stronger Roots (10 Pounds)
High-potassium nutrition for balanced plant development: this sulfate of potash (SOP) provides potassium sulfate with sulfur to support root strength, stem structure, and fruit and flower formation. A low-chloride potash fertilizer suitable for vegetables, fruit trees, ornamentals, and lawns where chloride sensitivity may be a concern.
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Quick-Release Elemental Sulfur Soil Acidifier - Fertilizer for Hydrangeas, Blueberries, Citrus, Roses, Evergreens & More, Aluminum Sulfate Alternative (3 qts. - 6 lbs.)
GARDENWISE
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Supply Solutions IronMaxx Granular Fertilizer - All Purpose Plant Food with Iron and Sulfur, Slow Release Garden Fertilizer for Lawn, Vegetables, Flowers & Trees, Outdoor Plant Fertilizer (10 Pounds)
All Purpose Fertilizer That Covers Everything: If you’re tired of switching products, this all purpose fertilizer works across your entire yard. From lawns to beds, this all purpose plant food handles it all. A reliable granular fertilizer and garden fertilizer that fits into your routine as your go-to outdoor plant fertilizer and plant fertilizer outdoor solution.
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Earth Science IronPro Fast Acting Liquid Iron Concentrate— 32oz—Iron Supplement for Lawns Plants Gardens Corrects Iron Deficiency, Deepens Green Color Without Excessive Growth, Covers 4,000 Sq Ft
Fast-Acting Iron Solution: Corrects and prevents yellowing caused by iron deficiency (chlorosis) in lawns, flowers, vegetable gardens, and plants for healthier, vibrant growth.
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Earth Science IronPro Fast Acting Lawn Garden Iron Supplement–5 lb–Deep Green Results for Grass, Flowers, Vegetables, & Shrubs, Non-Staining & Non-Burning, Easy Apply Formula, Covers 1600 Sq. Ft
Fast Acting for Greener Lawns: Delivers deep green results in just days, revitalizes grass, flowers, shrubs, and vegetables.
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Aluminum Sulfate Octadecahydrate, ACS, 98+%, 500g
Pacakged in a resealable bag
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Espoma Turf-Tone All Season Organic Lawn Food with Iron & Exclusive Bio-Tone Formula - Slow Release Long Lasting Feeding for All Lawns - Granular Lawn Fertilizer for All Seasons - Made In USA, 14 lbs.
ALL SEASON LAWN FOOD: Formulated to feed lawns in spring, summer, or fall; this natural grass food nourishes from the ground up for a lush, green lawn; ideal for fescues, bluegrass, rye grass, st. augustine, and zoysia
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Pennington Ironite All-Purpose 1-0-1 Lawn & Garden Fertilizer 5000 sq. ft. for All Grasses - Total Qty: 1
Pennington Ironite All-Purpose 1-0-1 Lawn & Garden Fertilizer 5000 sq. ft. for All Grasses - Total Qty: 1
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Substral 7391 Iron Fertiliser Green
Iron-Rich Formula: Fortifies plants with essential iron to prevent and correct deficiencies
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AgChimp 5-0-20 with 2% Iron Professional Turf Fertilizer, 16lb
Covers up to 5,000 Sq. Ft.
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The most popular brands include: TPS NUTRIENTS, Supply Solutions, and GARDENWISE. Today's offer is GRANDAN 3 Lb Ferrous Sulfate Heptahydrate - 3/16 Inch FeSO4*7H2O Granules - 20% Iron (Fe) Stable and Easy to Store - Organic Lawn Fertilizer for Vegetables and Plant Growth with 22% discount. The lowest price we found in our offers is $ 10.99 . The highest price in our price comparison is $ 469.69 .