Top 30 Iron Sulfate Garden Fertilizers on Amazon (Verified You can Buy)
Top 1
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)
xixisusu
iron ferrous sulfate
0.5 pounds
Ratings for xixisusu (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GZMIXIMIXI | - | ❌ | ❌ | ❌ |
Features
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.
Formulated with concentrated ferrous sulfate, this powerful iron for trees and shrubs delivers readily available nutrients. The iron sulfate for plants works quickly to address nutrient deficiencies in soil.
Top 2
Hi-Yield (32340) Iron Sulfate (4 lbs.)
Hi-Yield
32340
5.0 x 8.0 x 13.0 Inches
Ratings for Hi-Yield (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Hearthshire | 77 | ✅ | ✅ | ✅ |
| Aidleyco | 882 | ✅ | ✅ | ✅ |
| Sweetner | 2,090 | ✅ | ✅ | ✅ |
| BEYOND YOUR HOME | 142 | ❌ | ❌ | ❌ |
| Harwell's Green Thumb | - | ❌ | ❌ | ❌ |
Features
The Iron Sulfate plant supplement is recommended for the prevention and correction of chlorosis.
This plant fertilizer helps to give a beautiful green color to lawns, shrubs, flowers and gardens.
Ironite Plus Shrubs, Trees Plant Food Bag Granular 12-10-10 3lb
Ironite
100099053
7.0 x 12.0 x 3.25 inches
1.406 pounds
Ratings for Ironite (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Nothing greens and grows like Ironite
With 2% Iron for greening
Commercial Grade Lawn Energizer- Liquid Lawn Fertilizer Booster with Iron & Nitrogen- Turf Spray Concentrated Fertilizer for Deeper Green- Any Grass Type, All Year- Simple Lawn Solutions- 32 Ounce
Simple Lawn Solutions
4316243495
5.5 x 3.0 x 9.0 inches
3.1 pounds
Ratings for Simple Lawn Solutions (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Custom Liquid Solutions | - | ✅ | ✅ | ✅ |
Features
Liquid Lawn Fertilizer Booster: Iron and Nitrogen Blend. Lawn Energizer booster provides essential nutrients needed to darken the green of your lawn
Fertilizer with Attached Sprayer: liquid lawn booster treatment in a ready-to-use hose end sprayer covers 3,200 square feet
Simple Lawn Solutions - Liquid Iron Fertilizer Darker Green - Chelated Micronutrients - Concentrated Green Booster for Turf Grass, Indoor Plants and Outdoor Garden (32 Ounce)
Simple Lawn Solutions
DG-LI-32OZ
5.0 x 2.25 x 8.0 inches
2.0 pounds
Ratings for Simple Lawn Solutions (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Custom Liquid Solutions | - | ✅ | ✅ | ✅ |
Features
Nitrogen and Iron Fertilizer: Darker Green Liquid Iron contains Nitrogen and Iron to help you achieve that dark green color
Maintain Lawn & Supplement Nutrient Deficiencies: Darker Green Liquid Iron is perfect for maintaining lawn or treating lawns deficient in Iron
Ferrous Sulfate Fertilizer for Plants, Ferrous Sulfate Heptahydrate Granules 20% Iron (Fe) - Plant Food to Help Greener Grass, Lawn, shrubs, Trees and Gardens (1 Pound)
OULLYY
Ratings for OULLYY (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| OULLYY Direct | - | ❌ | ❌ | ❌ |
Features
Ferrous sulfate acts as a soil conditioner, lowering the pH of alkaline soils, making it easier for plants to absorb nutrients from the soil, helping to give your garden that beautiful green color.
Watering the soil - dilute ferrous sulfate with clean water at a rate of 1:500, and then directly water it on the roots of the plants, watering every 30 days or so.
Top 7
Best for Flowers
Best for Nitrogen
Best for Bottle
Best for Spray
Best for Natural
Best for Concentrate
Best for Ready For Use
Best for Liquid
GARDENWISE 10-10-10 All Purpose Plant Food - Liquid Fertilizer with Seaweed Kelp & Iron - Indoor & Outdoor Plant Food, Vegetables, Flowers, Lawn & Garden 1x8oz
GARDENWISE
6b69b6b5-92c7-42ec-94ee-811d269fe2ed
3.0 x 3.0 x 6.0 inches
0.5 pounds
Ratings for GARDENWISE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GardenWise | - | ❌ | ❌ | ❌ |
Features
🌱 COMPREHENSIVE PLANT NUTRITION: The 10-10-10 in our liquid plant fertilizer signifies a balanced blend of Nitrogen (N), Phosphorus (P), and Potassium (K), each contributing 10% to the total composition. Nitrogen is essential for promoting lush, vibrant foliage and overall growth, while Phosphorus is integral to root development and crucial for blooming and fruiting. Potassium, responsible for overall plant health.
🌟 ULTIMATE VERSATILITY AND ALL-PURPOSE FORMULA FOR EVERY GARDEN: Our 10-10-10 liquid fertilizer is meticulously balanced to suit all types of gardens, including outdoor vegetable gardens, lush lawns, indoor houseplants, decorative flowers, and resilient shrubs. Whether you're nurturing a sprawling backyard, cultivating nutritious home-grown produce, or enhancing the vibrancy of your indoor greenery, our fertilizer meets each plant's unique needs.
Top 8
Best for Nitrogen
Ammonium Sulfate 21-0-0 Fertilizer, High Nitrogen for Rapid Plant Growth & Deep Green Color, Ideal Soil Acidifier to Lower pH in Alkaline Soil, 5 lb
The Grow Co
Ammonium Sulfate 21-0-0
4.0 Pounds
Ratings for The Grow Co (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| umBrands | - | ❌ | ❌ | ❌ |
Features
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.
GREAT FERTILIZER SOIL ACIDIFIER: Made to acidify soil, our sulfur for soil is excellent for acid loving plants. It lowers pH levels & is perfect for fertilizing plants in highly alkaline soil.
10-10-10 Fertilizer for Vegetables – Liquid Plant Food with Iron & Micronutrients for Balanced Nutrition, Strong Roots & Healthy Harvests, 8 oz
TPS NUTRIENTS
TRIPLE10VEG8OZ
1.5 x 1.5 x 6.0 inches
0.5 pounds
Ratings for TPS NUTRIENTS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| The Plant Shoppe, LLC | - | ❌ | ❌ | ❌ |
Features
Balanced 10-10-10 Nutrition – Formulated with equal NPK to support steady vegetable plant growth.
Supports Roots, Foliage & Yield – Helps encourage strong roots, healthy leaves, and productive harvests.
Top 10
Best for Ammonia
CountryMax Ammonium Sulfate Fertilizer 21-0-0, 10LB Bag, High Nitrogen Lawn Fertilizer with Sulfur, Plant Food for Grass, Gardens, Vegetables & Soil Care
CountryMax
10.0 Pounds
Ratings for CountryMax (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| CountryMax Stores | 3,256 | ❌ | ❌ | ❌ |
Features
[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
[SULFUR FOR SOIL BALANCE]: Contains sulfur to support soil conditions and nutrient uptake, making it a practical choice for garden soil, lawn care, and plant feeding
Top 11
GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (1/2 qt)
GARDENWISE
GRN-08-04-08-HDR
1.0 pounds
Ratings for GARDENWISE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GardenWise | - | ❌ | ❌ | ❌ |
Features
🌸 SPECTACULAR BLOOMS ALL YEAR: Promote vivid flowers with our balanced 8-4-8 formula, enriched with iron and sulfur for enhanced soil acidity and brighter, healthier blooms.
🌱 TAILORED FOR ACID-LOVING PLANTS: Ideal for hydrangeas, azaleas, camellias, and magnolias, providing essential nutrients for lush foliage and robust health.
Top 12
Best Garden Fertilizers
Best for Espoma
Best for Vegetables
Best for Box
Best for Spring
Best for Natural
Best for Organic
Best for Ready For Use
Best for Powder
Espoma Organic Garden-Tone 3-4-4 Organic Fertilizer for Cool & Warm Season Vegetables and Herbs. Grow an Abundant Harvest of Nutritious and Flavorful Vegetables – 4 lb. Bag.
Espoma
GT36
8.0 x 5.0 x 5.0 inches
4.0 pounds
Ratings for Espoma (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| One Way Pet | 317 | ✅ | ✅ | ✅ |
| Gatzies | 120 | ✅ | ✅ | ✅ |
| Hearthshire | 77 | ✅ | ✅ | ✅ |
| MyGardenPool | - | ❌ | ❌ | ❌ |
| R&F Supplies | - | ❌ | ❌ | ❌ |
| SportingDoc | 95 | ❌ | ❌ | ❌ |
| Lightning Fast Logistics LLC | - | ❌ | ❌ | ❌ |
| GNS Products Limited | 7,519 | ❌ | ❌ | ❌ |
| WorldwideSuperStore | 9,059 | ❌ | ❌ | ❌ |
Features
FOR USE ON: Use Garden-tone organic fertilizer for leafy vegetables like lettuce, kale & cabbage as well as warm season crops like tomatoes, peppers, squash & melons.
CONTAINS: Garden-tone is a rich blend of the finest natural & organic ingredients enhanced with our exclusive Bio-tone formula; 3-4-4 Fertilizer analysis with 5% calcium. Garden-tone is environmentally Safe - No sludges or toxic ingredients.
Top 13
GRANDAN Ferrous Sulfate Heptahydrate 1 Lb - 3/16 Inch FeSO4*7H2O Granules - 20% Iron (Fe) Stable and Easy to Store - Organic Lawn Fertilizer for Vegetables and Plant Growth
GRANDAN
YC-LSYT
0.9921 pounds
Ratings for GRANDAN (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GRANDAN | - | ❌ | ❌ | ❌ |
Features
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
FeSO4*7H2O - ferrous sulfate is used as a soil amendment to lower the pH of highly alkaline soils, making it easier for plants to obtain nutrients from the soil. It is heptahydrate in the form of iron (2+) sulfate
Top 14
GARDENWISE Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth (12 oz)
GARDENWISE
GRN-08-04-08-HDR
0.75 Pounds
Ratings for GARDENWISE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GardenWise | - | ❌ | ❌ | ❌ |
Features
🌸 SPECTACULAR BLOOMS ALL YEAR: Promote vivid flowers with our balanced 8-4-8 formula, enriched with iron and sulfur for enhanced soil acidity and brighter, healthier blooms.
🌱 TAILORED FOR ACID-LOVING PLANTS: Ideal for hydrangeas, azaleas, camellias, and magnolias, providing essential nutrients for lush foliage and robust health.
Top 15
Ferrous Sulfate for Plants – Liquid Iron Sulfate for Plants for Greener Leaves, Improved Chlorophyll Production & Reduced Yellowing, 32 oz
TPS NUTRIENTS
TPS-FERROUSULFATE-1GAL
3.0 x 3.0 x 9.0 Inches
Ratings for TPS NUTRIENTS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| The Plant Shoppe, LLC | - | ❌ | ❌ | ❌ |
Features
Made for Iron Support – Formulated to supply iron for balanced plant nutrition.
Supports Green Foliage & Vitality – Helps encourage vibrant leaf color and steady growth.
Top 16
Greenway Biotech, Inc. Ferrous Sulfate Heptahydrate Fertilizer Includes 20% Iron (Fe) 12% Sulfur & 100% Water Soluble Powder- Organic Lawn Fertilizer for Vegetables and Plant Growth (10 Pounds)
Greenway Biotech, Inc.
TRTAZ11A
Ratings for Greenway Biotech, Inc. (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| homengardenproducts | 6,938 | ❌ | ❌ | ❌ |
Features
IRON SULFATE HEPTAHYDRATE - Iron ferrous sulfate is used as a soil amendment for lowering the pH of a high alkaline soil so plants can more readily access the soil's nutrients. It is a heptahydrate in the form of iron (2+) sulfate
IT INCLUDES - 10 Pounds of Greenway Biotech Ferrous Sulfate Heptahydrate includes 20% Iron (Fe) 12% Sulfur (S) and it is 100% water soluble powder. Our ferrous sulfate fertilizer can also be dried and oxidized to create other useful forms of iron
Top 17
GRANDAN 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 (8 Oz)
GRANDAN
YC-LSYT
Ratings for GRANDAN (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GRANDAN | - | ❌ | ❌ | ❌ |
Features
Set Includes - 8 Oz 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
FeSO4*7H2O - ferrous sulfate is used as a soil amendment to lower the pH of highly alkaline soils, making it easier for plants to obtain nutrients from the soil. It is heptahydrate in the form of iron (2+) sulfate
Top 18
Liquid Iron for Lawns, Multi-Purpose and Suitable for All Gardens, 1 Gal
LawnStar
pink
0.0 x 0.0 x 0.0 Inches
4.95 Pounds
Ratings for LawnStar (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Nova Needs | - | ❌ | ❌ | ❌ |
Features
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.
PROMOTES GREENER COLOR: This iron sulfate for plants corrects iron chlorosis and reverses yellowing leaves by supporting chlorophyll production, bringing life back to lawns, flowers, shrubs & trees.
Top 19
𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ]
Gardenera
![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ] #1](https://m.media-amazon.com/images/I/41hgfhjNniL._SL600_.jpg)
![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ] #2](https://m.media-amazon.com/images/I/51d1EJaTnoL._SL600_.jpg)
![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ] #3](https://m.media-amazon.com/images/I/41vmQmB9p1L._SL600_.jpg)
![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ] #4](https://m.media-amazon.com/images/I/51yGWZwoapL._SL600_.jpg)
![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ] #5](https://m.media-amazon.com/images/I/518O2RByxgL._SL600_.jpg)
![𝐁𝐄𝐒𝐓𝐒𝐄𝐋𝐋𝐄𝐑 Slow Release Hydrangea Fertilizer with Iron & Sulfur – Indoor & Outdoor Soil Acidifier for Miracle Growth [8 OZ] #6](https://m.media-amazon.com/images/I/41GMdJW8zUL._SL600_.jpg)
Ratings for Gardenera (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| NSKO Trading | - | ❌ | ❌ | ❌ |
Features
🌸 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.
🌿 FORMULATED FOR ACID-LOVING PLANTS – Specifically designed for hydrangeas, camellias, rhododendrons, and gardenias, this blend promotes lush green foliage and robust flowering.
Top 20
Greenway Biotech Ferrous Sulfate Heptahydrate Fertilizer Includes 20% Iron (Fe) 12% Sulfur & 100% Water Soluble Powder- Organic Lawn Fertilizer for Vegetables and Plant Growth - 1 Pound
Greenway Biotech, Inc.
TRTAZ11A
1.0 Pounds
Ratings for Greenway Biotech, Inc. (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| homengardenproducts | 6,938 | ✅ | ✅ | ✅ |
Features
IRON SULFATE HEPTAHYDRATE - Iron ferrous sulfate is used as a soil amendment for lowering the pH of a high alkaline soil so plants can more readily access the soil's nutrients. It is a heptahydrate in the form of iron (2+) sulfate
IT INCLUDES - 1 Pound of Greenway Biotech Ferrous Sulfate Heptahydrate includes 20% Iron (Fe) 12% Sulfur (S) and it is 100% water soluble powder. Our ferrous sulfate fertilizer can also be dried and oxidized to create other useful forms of iron
Top 21
Hi-Yield (34340) Iron Sulfate (3.25 lbs.)
Hi-Yield
34335
3.3 x 7.9 x 12.4 inches
3.0 Pounds
Ratings for Hi-Yield (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Duncan's Family Farm Store | - | ❌ | ❌ | ❌ |
| Hearthshire | 77 | ❌ | ❌ | ❌ |
Features
The Iron Sulfate plant supplement is recommended for the prevention and correction of chlorosis.
This plant fertilizer helps to give a beautiful green color to lawns, shrubs, flowers and gardens.
Top 22
Hi-Yield (34257) Iron Plus Soil Acidifier 11-0-0, 3.25 lbs
Hi-Yield
34257
1.5 Pounds
Ratings for Hi-Yield (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| 21st Century Mercantile | - | ❌ | ❌ | ❌ |
| Duncan's Family Farm Store | - | ❌ | ❌ | ❌ |
Features
This Iron Supplement and pH Acidifier is designed to turn yellowing plants and grass green.
Only for use on Alkaline and Calcareous soil. Incorrect use could result in burning.
Top 23
GARDENWISE 8-4-8 Acidic Fertilizer for Azaleas, Camellias (Camelia), Hydrangeas, Blueberries, Gardenias, Magnolia Trees, Evergreens, and Rhododendrons - Ideal Iron-Rich Plant Food (12 OZ)
GARDENWISE
GRN-08-04-08-AZ
4.0 x 2.0 x 4.0 inches
0.75 pounds
Ratings for GARDENWISE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GardenWise | - | ❌ | ❌ | ❌ |
Features
🌺 VIBRANT BLOOMS & ROBUST GROWTH: Enriched with essential nutrients like magnesium, iron, and manganese, GARDENWISE 8-4-8 is ideal for preventing chlorosis in acid-loving plants. It's perfect for azaleas, camellias (camelia), rhododendrons, hydrangeas, and all acid-loving plants including magnolia trees, evergreens, and blueberries.
🌿 SOIL ACIDIFICATION FOR OPTIMAL GROWTH: This fertilizer acts as an effective soil acidifier. It's crucial for azaleas, hydrangeas, and gardenias, often struggling in neutral or alkaline soils.
Top 24
SouthernGRO Iron Sulfate Fertilizer 4lb. Bag (19% FE 11% S)
SouthernGRO
4.0 pounds
Ratings for SouthernGRO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Backwoods Attraction | - | ❌ | ❌ | ❌ |
Features
Rich green coloring
Corrects chlorosis
Top 25
Greenway Biotech Ferrous Sulfate Heptahydrate Fertilizer Includes 20% Iron (Fe) 12% Sulfur & 100% Water Soluble Powder- Organic Lawn Fertilizer for Vegetables and Plant Growth - 2 Pounds
Greenway Biotech, Inc.
TRTAZ11A
2.0 Pounds
Ratings for Greenway Biotech, Inc. (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| homengardenproducts | 6,938 | ✅ | ✅ | ✅ |
Features
IRON SULFATE HEPTAHYDRATE - Iron ferrous sulfate is used as a soil amendment for lowering the pH of a high alkaline soil so plants can more readily access the soil's nutrients. It is a heptahydrate in the form of iron (2+) sulfate
IT INCLUDES - 2 Pounds of Greenway Biotech Ferrous Sulfate Heptahydrate includes 20% Iron (Fe) 12% Sulfur (S) and it is 100% water soluble powder. Our ferrous sulfate fertilizer can also be dried and oxidized to create other useful forms of iron
Top 26
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
GRANDAN
YC-LSYT
0.9921 pounds
Ratings for GRANDAN (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GRANDAN | - | ❌ | ❌ | ❌ |
Features
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
FeSO4*7H2O - ferrous sulfate is used as a soil amendment to lower the pH of highly alkaline soils, making it easier for plants to obtain nutrients from the soil. It is heptahydrate in the form of iron (2+) sulfate
Top 27
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)
Factory Hardware Store
34335 34340 - 2
3.25 Pounds
Ratings for Factory Hardware Store (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Factory Hardware Store | 9,555 | ❌ | ❌ | ❌ |
| Duncan's Family Farm Store | - | ❌ | ❌ | ❌ |
Features
2 PACK FOR SEASONAL USE - Includes two 3.25 lb bags—ideal for multiple applications across lawns, shrubs, flowers, and garden beds.
SUPPORTS HEALTHY GREEN COLOR - Provides iron to help maintain rich green appearance in turf and plants.
Top 28
Espoma Iron-Tone Plant Food, Natural & Organic Fertilizer, Iron Supplement, Turns Yellow to Green, 5 lb, Pack of 2
Espoma
ESPIT5
5.0 Pounds
Ratings for Espoma (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| MyGardenPool | - | ✅ | ✅ | ✅ |
| SWIFTCHOICE | 7,555 | ✅ | ✅ | ✅ |
| Lightning Fast Logistics LLC | - | ❌ | ❌ | ❌ |
| Home and Country USA | - | ❌ | ❌ | ❌ |
| SportingDoc | 95 | ❌ | ❌ | ❌ |
Features
Espoma Iron-tone Plant Food is a fast-acting iron supplement that turns yellow leaves deep green!
Iron-tone is perfect for lawns, flowers, vegetables, evergreen and ornamental shrubs, berries, citrus, shade, ornamental and fruit trees
Top 29
Humboldts Secret CalMag & Iron | Calcium, Magnesium & Chelated Iron Nutrient Fertilizer | Hydroponic Supplies for Vegetative & Flowering Growth in Soil, Coco, Hydroponics or RO Water | 8 Ounce
Humboldts Secret
15195521384514
0.65 Pounds
Ratings for Humboldts Secret (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Green Supplies | - | ❌ | ❌ | ❌ |
Features
Packaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance. Strength for Every Stage - Humboldts Secret supplement with cal mag for plants delivers calcium, magnesium, and chelated iron to prevent deficiencies. It fortifies stems, improves leaf color, and supports flowering and fruiting plants for vigorous, healthy growth in any type of garden.
Fast-Acting Plant Recovery: Our balanced formula with calmag and chelated iron targets issues caused by nutrient imbalances, helping plants recover quickly. It boosts photosynthesis, nutrient transport, and root strength in vegetables, flowers, and herbs grown indoors or outdoors.
Top 30
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
Earth Science
12506
Ratings for Earth Science (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Earth Science Co. | - | ❌ | ❌ | ❌ |
Features
Fast Acting for Greener Lawns: Delivers deep green results in just days, revitalizes grass, flowers, shrubs, and vegetables.
Safe for People, Pets, and Plants: Non-burning, non-staining formula ensures safe application.
Top 10 Iron Sulfate Garden Fertilizers - Verified to Buy (September 2026)
- 1. XIXISUSU Iron Sulfate for Plants - Ferrous Sulfate Powder to...
- 2. Hi-Yield (32340) Iron Sulfate (4 lbs.)
- 3. Ironite Plus Shrubs, Trees Plant Food Bag Granular 12-10-10 3lb
- 4. Commercial Grade Lawn Energizer- Liquid Lawn Fertilizer Booster with Iron...
- 5. Simple Lawn Solutions - Liquid Iron Fertilizer Darker Green -...
- 6. Ferrous Sulfate Fertilizer for Plants, Ferrous Sulfate Heptahydrate Granules 20%...
- 7. GARDENWISE 10-10-10 All Purpose Plant Food - Liquid Fertilizer with...
- 8. Ammonium Sulfate 21-0-0 Fertilizer, High Nitrogen for Rapid Plant Growth...
- 9. 10-10-10 Fertilizer for Vegetables – Liquid Plant Food with Iron...
- 10. CountryMax Ammonium Sulfate Fertilizer 21-0-0, 10LB Bag, High Nitrogen Lawn...
Top 10 Iron Sulfate Garden Fertilizers Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- xixisusu
- Hi-Yield
- Ironite
- Simple Lawn Solutions
- OULLYY
- GARDENWISE
- The Grow Co
- TPS NUTRIENTS
- CountryMax
- Espoma
Related Iron Sulfate Garden Fertilizers Guides
For more personalized Iron Sulfate Garden Fertilizers guides, Check those pages,
Ingredients
Top 10 Iron Sulfate Garden Fertilizers Sellers: CPR Seller Rank List
CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.
- 1. Hearthshire : 348,312 Yearly Feedback , Avg. Ratings 4.7
- 2. SportingDoc : 300,416 Yearly Feedback , Avg. Ratings 4.9
- 3. Gatzies : 260,473 Yearly Feedback , Avg. Ratings 4.6
- 4. BEYOND YOUR HOME : 223,444 Yearly Feedback , Avg. Ratings 4.9
- 5. One Way Pet : 120,620 Yearly Feedback , Avg. Ratings 4.9
- 6. Aidleyco : 55,525 Yearly Feedback , Avg. Ratings 4.9
- 7. Sweetner : 27,893 Yearly Feedback , Avg. Ratings 4.9
- 8. CountryMax Stores : 19,421 Yearly Feedback , Avg. Ratings 4.6
- 9. homengardenproducts : 9,723 Yearly Feedback , Avg. Ratings 4.9
- 10. GNS Products Limited : 9,137 Yearly Feedback , Avg. Ratings 4.9
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Hearthshire | 348,312 | 4.7 |
| 🥈 | SportingDoc | 300,416 | 4.9 |
| 🥉 | Gatzies | 260,473 | 4.6 |
| 4 | BEYOND YOUR HOME | 223,444 | 4.9 |
| 5 | One Way Pet | 120,620 | 4.9 |
| 6 | Aidleyco | 55,525 | 4.9 |
| 7 | Sweetner | 27,893 | 4.9 |
| 8 | CountryMax Stores | 19,421 | 4.6 |
| 9 | homengardenproducts | 9,723 | 4.9 |
| 10 | GNS Products Limited | 9,137 | 4.9 |
[Get] Iron Sulfate Garden Fertilizers Deals (✅Exclusively for Prime)
What does "Amazon Fulfilled" Mean?
Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.
When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.
What does "Prime" Mean?
"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.
Prime members also have access to other benefits, including 2-Day Shipping, Exclusive Member Deals, Prime Video, Buy With Prime, Amazon Music, Prime Gaming, and more.
Shop Prime Iron Sulfate Garden Fertilizers Deals
What does "Free Shipping" Mean?
"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.
Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.
Why Should You Trust Us?
Now hundreds and thousands of Gardening supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Iron Sulfate Garden Fertilizers to buy for new September 2026?
CherryPicks’s Methodology for Evaluating Iron Sulfate Garden Fertilizers
We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Gardening items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.
We collected and analyzed 160 of Iron Sulfate Garden Fertilizers reviews based on our selection criteria. It helped us shortlist the top qualified and rated Iron Sulfate Garden Fertilizers for Gardening, We found that most customers choose Iron Sulfate Garden Fertilizers with an average price of $19.40, and the top brands are TPS NUTRIENTS, LawnStar, Earth Science And CountryMax.
Then our expert-level editors reviewed all those quality items and selected the top 30 Iron Sulfate Garden Fertilizers for you, We have researched hundreds of sellers and picked the top sellers for Gardening, including Hearthshire, SportingDoc, Gatzies, BEYOND YOUR HOME, One Way Pet, Aidleyco, Sweetner, CountryMax Stores, homengardenproducts, GNS Products Limited, SWIFTCHOICE And WorldwideSuperStore. The XIXISUSU Iron Sulfate for Plants - Ferrous Sulf... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 20 consumers with an average rating of 4.3.
We've helped a lot of satisfied users get the right Patio, Lawn & Garden product based on their needs, and save lots of time for them to pick Iron Sulfate Garden Fertilizers to buy.
Jody is a freelance writer, a martial artist, and a video game player. He has a passion for greens and keeping the lawn neatly kept. He joined the team of our writers to provide a guide on how to keep the lawn, patio, and garden presentable.