Aluminum Sulfate Soil Acidifier – Repackaged Bulk – Lowers Soil PH For Azaleas, Hydrangeas, Holly, Hemlock

Open box, but good stuff.

This is aluminum sulfate—helps lower soil pH for acid-loving plants like azaleas, hydrangeas, holly, and hemlock.

Repackaged from bulk supply, so no fancy retail box.

Unbranded, but it's the same chemical.

If your hydrangeas aren't turning blue or your azaleas look sad, hit the soil with this.