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Dr. Iron Fertilizer

Corrects Iron Deficiency

Dr. Iron Logo
  • Corrects iron deficiency
  • Won’t stain concrete or burn foliage
  • OMRI Listed—Environmentally friendly
  • Apply 3.5 lbs per 1,000 sq. ft.
  • Controlled release for season-long feeding
Active Ingredient %
Sulfur 55.00 %
Iron 22.00 %
Other Ingredients 23.00 %
Available on Amazon

$1.95 / lb
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Available on Do My Own

$2.25 / lb
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Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Water Instructions
Follow the application with a deep thorough watering to activate Dr. Iron and move it into the soil profile.
Fertilizer & Nutrient Analysis
Broadcast Application
Label Rate:
3.5 lbs per 1,000 sqft
Label Rate Nutrient Analysis:
Ingredient % Mass / Area
Iron 22% 0.77 lbs / 1,000 sqft
Sulfur 55% 1.93 lbs / 1,000 sqft
Label Rate Cost Effectiveness:
Covers 6000 square feet
at a cost of
$6.82 per 1,000 sqft
Nutrient Mass:
Total Nutrient Cost Analysis:
Ingredient Total Mass Cost / Mass
Iron 4.62 lbs $8.85 / lb
Sulfur 11.55 lbs $3.54 / lb

Dr. Iron Optimized Application Label Rate Calculator

No Control
Broadcast Treatment:
Grass / Turf Types Safe
Annual Ryegrass
Chewings Fescue
Colonial Bentgrass
Fine Fescue
Hard Fescue
Kentucky Bluegrass
Kikuyu Grass
Perennial Ryegrass
Red Fescue
St. Augustinegrass
Tall Fescue
Jump to CertainLabel™ Dr. Iron Label Rates & Calculator for these 18 turf types
Broadcast Treatment
Label Rate:
3.5 lbs per 1,000 sqft
Cost Effectiveness:
Covers 6000 square feet
at a cost of
$6.82 per 1,000 sqft
Questions & Comments
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