Ideas and equipment for your next good day in the garden.
Soil & Amendments

Espoma Soil Acidifier, 6 lb.

A six-pound sulfur-based amendment intended to lower soil pH.

OUR TAKE

Soil Acidifier has a purpose when measured soil conditions and the chosen plants call for a lower pH.

Good for
A measured soil-pH adjustment for suitable acid-loving plants.
Look elsewhere if
No soil measurement or plant-specific reason supports acidifying the ground.
The tradeoff
Changing pH needs a measured plan rather than a routine addition.

Get the right setup

  • A suitable soil-pH measurement and a plant-specific reason to lower it.
  • Use only for the plants and uses on the current package label.
  • Follow the package rate, timing, storage, and handling directions.

At a glance

Package
6 pounds
Type
Soil-pH amendment

Why it earns a look

  • Soil-pH amendment in a defined 6 pounds package.

Where it asks for a compromise

  • Changing pH needs a measured plan rather than a routine addition.

Buy the input the project calls for

Soil Acidifier has a purpose when measured soil conditions and the chosen plants call for a lower pH. Keep the package directions with the garden plan so the amount and intended use stay clear.

Living with it in the garden

Keep the labelled directions available when using the product.

Store the remaining material as directed on the bag.

Your GSUL6 questions

Is this a complete potting mix?

It is a soil-ph amendment. Choose the product around that specific role.

Where should the quantity and handling instructions come from?

Use the current package label for the exact product and intended planting.

Full specifications, manuals & sources

Model details

Full model name
Espoma Organic Soil Acidifier Amendment; Lowers Soil pH and Turns Hydrangeas Blue! Contains Elemental Sulfur and can be Used for Organic Gardening 6 lb. Bag - Pack of 1
Amazon ASIN
B0063ZDQ66
Brand
Espoma

Manuals & product information

Photo sources

Product information checked 2026-10-29. Our assessment uses the linked specifications and manuals; it does not represent a hands-on test. Editorial standards & corrections.

Explore all soil & amendments