Fast Acting Iron®

Earth Science Fast Acting Iron® starts working immediately to green up your lawn. Apply any season to any type of grass for a deep green without excessive growth.

Fast Acting Iron®

25 lbs – 5,000 Sq. Ft. Coverage

Product Details

Featured Technology


Helps Reduce Nutrient Run-off and Waste

Earth Science’s patented Nutri-Bond Technology™ bonds with the soil to help keep more product where you put it. That’s better for the environment and helps your lawn or garden get the most out of every application.

Nutri-Bond Technology™ chevron

Additional Features

Easy Application

Apply quickly with any spreader.

Lawn Food
Safe for Grass

Safe to use on any grass type.

People & Pets

People and pets can use the lawn immediately after application.


5,000 Sq. Ft.

Available Sizes

2.5lbs, 25 lbs

Step 1


Apply with Any Spreader

Apply at a rate of 5 lbs per 1,000 Sq. Ft. One bag of Earth Science Fast Acting Iron® will cover a 5,000 Sq. Ft. lawn. Apply any season to any type of grass.

Step 2


Water In (Optional)

While not required, watering for 15 minutes after application activates the product for faster results.


Rate & Frequency


25 lbs per 5,000 Sq. Ft. (1 bag), Up to 2x per season

Vegetable & Flower Gardens

2.5 lbs per 400 Sq. Ft., Feed in Spring and Fall


2.5 lbs spread below canopy, Feed in Spring and Fall


1 cup around base, Feed in Spring and Fall

Spreader Type

Recommended Setting

Scotts Broadcast Spreaders


Scotts Drop Spreaders


Earthway Broadcast Spreaders


Lesco Commercial Plus


  • Great source of essential minerals for lawns, gardens, trees, and shrubs.
  • Iron deficiency appears as yellowing, often on the youngest leaves or grass blades.

Expert Advice

Turns out, if you do something for 20 years, you have some advice to share.