Monterey Dr. Iron Acidifier, Iron and Elemental Sulfur Acidic Fertilizer
Best organic soil amendment for gardeners battling yellowing plants and high pH.
This is the ultimate fix for yellowing plants struggling in alkaline soil. By combining iron with elemental sulfur, it corrects nutrient deficiencies while actively lowering pH to create a healthier growing environment. It’s a slow-release, organic-approved solution that prioritizes long-term soil health over a quick, temporary green-up.
$27.99
at
Garden Elements
Who it's for
- Gardeners needing a fast fix for yellowing, chlorotic leaves
- Plant owners managing long-term soil alkalinity for acid-loving species
- Users wanting both immediate visual results and lasting soil health
Who should skip it
- Growers seeking an all-in-one fertilizer for general plant nutrition
- Gardeners needing an instant fix for severely alkaline soil
- Beginners uncomfortable with precise measuring and soil testing
Performance breakdown
pH Correction Potency
High elemental sulfur content drives rapid and effective soil acidification.
Nutrient Density
Concentrated 22% iron formula delivers significant greening power per application.
Application Versatility
Granular form works seamlessly across lawns, shrubs, and vegetable beds.
Organic Integrity
OMRI listing ensures strict compliance for high-standard organic gardening practices.
Surface Safety
Non-staining formula prevents unsightly rust marks on patios and walkways.
Feeding Longevity
Slow-release mechanism provides consistent nourishment, reducing the need for frequent reapplication.
Key Specs
Contains 22% Iron and 55% Sulphur
Fertilizer Form
Granular
Release Type
Slow Release
Package Weight
7 lbs
Organic Certification
OMRI Listed
Intended Use
Lawn, Vegetable Garden, Roses, Trees and Shrubs
Fertilizer Source
Organic
Pest Control Properties
Disease Control
Water Soluble
No
Container Weight
7.0 pounds
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