• Description
  • Product Features

Ferrous Sulfate Monohydrate – 30% Fe | 50 lb Bag

Twinsbridge® Ferrous Sulfate Monohydrate (FeSO₄·H₂O) delivers a concentrated 30% iron source for correcting iron chlorosis, lowering soil pH, and eliminating moss in turf, ornamentals, and field crops. OMRI Listed for use in certified organic production. Manufactured in Spain by Twinsbridge, a trusted global feed and fertilizer brand.

Guaranteed Analysis

Nutrient Guaranteed
Iron (Fe) 30% min
Sulfur (S) 18% min
FeSO₄·H₂O Purity 91.4% min

Heavy Metal Limits

Element Max
Arsenic (As) 0.0002%
Lead (Pb) 0.0015%
Cadmium (Cd) 0.001%
Mercury (Hg) 0.00001%

Physical Properties

  • Form: Free-flowing granule, dust-free
  • Appearance: Slight grey to off-white
  • Particle Size: 20–40 mesh
  • Bulk Density: 1,500 kg/m³
  • CAS Number: 7782-63-0
  • Molecular Formula: FeSO₄·H₂O

Primary Uses

  • Correct iron chlorosis in turf, ornamentals, and field crops
  • Lower soil pH in alkaline soils
  • Eliminate moss from lawns and hardscapes
  • Animal feed supplement (swine, poultry) to prevent iron-deficiency anemia
  • Hydroponic and fertigation iron source

Certifications

  • OMRI Listed – approved for certified organic production (USDA NOP)
  • Manufactured in Spain | Global distribution by Twinsbridge
  • Technical Data Sheet
30% Iron (Fe) | 18% Sulfur (S) | OMRI Listed Organic | Made in Spain | Twinsbridge Global Feed Brand | Free-flowing 20–40 mesh granule | Dust-free | Corrects iron chlorosis | Lowers soil pH | Eliminates moss | Animal feed approved | 50 lb bag

Ferrous Sulfate Monohydrate – 30% Iron, 50 lb Bag

Ferrous Sulfate Monohydrate – 30% Iron, 50 lb Bag

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$41.23
$62.00 $41.23
$0.82 lb
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At the leading edge of the market, Custom Hydro stands out by providing the growing industry with fertilizers that are not only of premium quality but also feature innovative
solutions tailored for the unique needs of hydroponic and organic farming practices.

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