SKU: 44850797735

Iron Sulfate 20 (50 lb)

Sale price$39.59 Regular price$43.99
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Description

Iron Sulfate 20 (50 lb)A robust iron fertilizer, this iron sulfate 20 for plants is a high quality, water soluble formulation of ferrous sulfate for plants, also known as ferrous sulfate fertilizer. Perfect for addressing iron and sulfur deficiencies in gardens, lawns, and cropsespecially in high pH soils. Key Features: Guaranteed Analysis: 20% Iron (Fe), 11% Sulfur Comes as a 50 lb bagideal bulk packaging for use across larger areas Increases availability of iron to

A robust iron fertilizer, this iron sulfate 20 for plants is a high-quality, water-soluble formulation of ferrous sulfate for plants, also known as ferrous sulfate fertilizer. Perfect for addressing iron and sulfur deficiencies in gardens, lawns, and crops—especially in high pH soils.

Key Features: 

  • Guaranteed Analysis: 20% Iron (Fe), 11% Sulfur
  • Comes as a 50 lb bag—ideal bulk packaging for use across larger areas
  • Increases availability of iron to support chlorophyll production and proper photosynthesis, helping correct iron chlorosis
  • Helps acidify alkaline soils, aiding acid-loving species like azaleas, rhododendrons, and blueberries
  • Contains sulfur, a critical secondary nutrient for protein and amino acid synthesis
  • Effective as a moss control agent for turf—promotes a lush, moss-free lawn when applied properly

Application & Usage:

  • Use Rate: Broadcast at 20–100 lb/acre, based on soil needs
  • Methods of Application:
    • Soil Amendment: Apply directly to soil or planting holes
    • Foliar Spray: Dissolve in water for quicker uptake
    • Lawn Moss Control: Spread over affected areas and water in to activate
  • Note: Avoid contact with porous surfaces (concrete, wood, metal) as the product can stain when wet
  • Tip: Always perform a soil test to determine precise needs before applying

Benefits at a Glance:

  • Supplies essential iron and sulfur for vibrant plant health
  • Provides a reliable source of iron sulfate fertilizer for varied uses—from lawns to orchards
  • Enhances nutrient uptake and improves soil structure
  • Convenient bulk-sized iron sulfate for sale in a 50 lb format

Technical Note for Agricultural Use:

This product contains ferrous sulfate heptahydrate and is compatible with most fertilizers. Always conduct a soil test and compatibility check before mixing with other inputs. Ideal for both soil and foliar applications. Handle with protective gear and avoid direct contact with porous materials.

Looking for more options that enrich soil with essential nutrients? Browse our full range of iron fertilizer products and fertilizers with sulfur.

⚠ Warning: This product or its packaging has a CA Prop 65 Warning

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44850797735

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4.3 ★★★★★
Based on 15 reviews
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A
Verified Purchase
Annette D
Omaha, US
★★★★★ 5
Good treat
My pup loves em. Keeps her busy a few minutes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025
H
Verified Purchase
HODGEPODGESPV
Fort Morgan, US
★★★★★ 4
Paws the vote is in and it got three out of three
Three puppies voted paws up for taste and a little bit of longevity. Now as for value for money. I know how much better than rawhide treats. But I’d like to see the price come down and more chewy’s inside the bag
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
G
Verified Purchase
Gloria O.
Houston, US
★★★★★ 5
Dog loved them
Great little treat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 10, 2025
N
Verified Purchase
Natalia
Charlottesville, US
★★★★★ 2
So so small! Not worth $
The images in Amazon are nothing like what the product is. The pretzels and rings are minuscule. My two pit/lab mixes will eat one in about 30 seconds. So disappointment. Not worth the $ for what you’re getting. I tried to return items which are individually wrapped but they do not allow returns on these products. I have not opened any of them and still not able to return. If you have a dog under 15lbs these may work! If you have a large breed don’t bother. I’m so disappointed. Pictures above is the product next to a small milk bone biscuit (for reference).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2025
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
Clean & quality but taste, meh
Flavor Name: Berry, Size: 30 Servings (8.0 Ounce) (Pack of 1)
I’ve ordered this product twice now. I do a wide array of workouts from weights to running to multi-functional. I’ve taken aminos from different companies for a long time but started to finally really research & felt much safer taking Thorne. The flavor isn’t the best if you add too much water. I’ve always added around 20oz to my intra-workout aminos with no problem but this one will get watered down. I adjusted and it’s been good. I’m also used to awful tasting soups and just powering through worse and this flavor is better than stuff I took up till the last few years. Newer people to using supplements might not like the flavor at all but trust me all workout supplements used to be awful. My recovery & muscle growth/lift gains have remained the same to the other products I’ve used with more mystery ingredients so there was no drop off there. I’m okay with taking a step back on taste and variety rather than putting mystery crap in my body from lesser regulated big companies. Product quality wins this for me & I’ve heard from multiple non-Thorne associated experts that vouched for Thrones testing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2021

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