Greenway Biotech Ferrous Sulfate
Best organic iron supplement for gardeners seeking vibrant green foliage.
This high-purity mineral supplement provides a rapid-response solution for iron deficiency in alkaline soils. By delivering iron in a directly absorbable form, it quickly corrects yellowing leaves while simultaneously lowering soil pH and managing moss, making it an essential tool for maintaining acid-loving plants.
$19.99
at
Greenway Biotech
More Ferrous Sulfate options
Who it's for
- Gardeners needing a fast-acting solution for chlorosis in plants
- Homeowners maintaining both lush green lawns and ornamental garden beds
- Budget-conscious landscapers managing expansive properties or multiple garden projects
Who should skip it
- Property owners with extensive hardscaping near their lawn or garden
- Growers cultivating acid-sensitive species in naturally low-pH environments
- Users sensitive to airborne dust or lacking proper safety equipment
Performance breakdown
Chlorosis Correction Speed
Rapidly restores deep green color to yellowing, iron-deficient foliage.
pH Adjustment Efficacy
Effectively lowers alkaline soil pH to unlock essential nutrient uptake.
Application Versatility
Fully soluble formula adapts seamlessly to foliar, drench, or broadcast methods.
Moss Control Potency
Delivers a reliable, targeted strike against persistent lawn moss growth.
Nutrient Concentration
High-purity blend packs a potent punch of iron and sulfur.
Ease of Dissolution
Crystal structure breaks down instantly without clogging spray equipment nozzles.
Key Specs
Iron Content
20%
Sulfur Content
12%
Form
Heptahydrate
Solubility
100% Water-soluble
Application
Foliar spray, soil drench, or broadcast
Certification
CDFA registered
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