Fast Acting Sulfur®

Earth Science Fast Acting Sulfur® starts working immediately to naturally lower the pH of your soil. Acid-loving plants require a low pH soil environment to thrive (between 4.0 and 5.5). Most other plants perform best when soil pH is between 6.2 and 7.2. When used as directed, Fast Acting Sulfur® helps your plants absorb more food and improves fertilizer effectiveness for a lush green lawn and colorful garden.

Fast Acting Sulfur®

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.

As a result of Nutri-Bond, 1 bag of Earth Science Fast Acting Sulfur® does the work of up to 4 bags of regular sulfur.

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

Typical Soil pH Levels In The United States

Average Soil pH

< 4.0 - 5.5


Average Soil pH

5.5 - 7.0


Average Soil pH

7.0 - 8.0


Average Soil pH

> 8.0

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 Sulfur® will cover a 5,000 Sq. Ft. lawn. Apply any time of year to maintain optimum soil pH.

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

Acid-Loving Plants

5 lbs per 500 Sq. Ft., As needed

Vegetable & Flower Gardens

2.5 lbs per 500 Sq. Ft., Feed in Spring


2.5 lbs spread below canopy, Feed in Spring and Fall


1/2 cup around base, Feed in Spring and Fall

Spreader Type

Recommended Setting

Scotts Broadcast Spreaders


Scotts Drop Spreaders


Earthway Broadcast Spreaders


Lesco Commercial Plus


  • Most plants perform best when soil pH is between 6.2 and 7.2. For "acid-loving" plants, we recommend a soil pH range of 4.0 - 5.5.
  • Helps acid-loving plants like hydrangeas, azaleas, and blueberries thrive.
  • For improved success, test your soil pH annually and be sure to search for your specific location to find the ideal pH level.

Expert Advice

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