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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

$1.82 / lb
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Available on Do My Own

$2.14 / 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
$6.36 per 1,000 sqft
Nutrient Mass:
Total Nutrient Cost Analysis:
Ingredient Total Mass Cost / Mass
Iron 4.62 lbs $8.26 / lb
Sulfur 11.55 lbs $3.30 / lb
CertainLabel™

Dr. Iron Optimized Application Label Rate Calculator

Legend:
Control
Suppression
No Control
Broadcast Treatment:
1
Grass / Turf Types Safe
Annual Ryegrass
Bahiagrass
Bentgrass
Bermudagrass
Buffalograss
Carpetgrass
Centipedegrass
Chewings Fescue
Colonial Bentgrass
Fine Fescue
Hard Fescue
Kentucky Bluegrass
Kikuyu Grass
Perennial Ryegrass
Red Fescue
St. Augustinegrass
Tall Fescue
Zoysiagrass
1
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
$6.36 per 1,000 sqft