Black Friday Sale Starts Tomorrow, Nov 10! Save 25% on select KiS products + exclusive bundle deals. 
Free
shipping
1 4

Yellowstone Montana 90% Sulfur Granules

4.3 out of 5 Read 4 reviews
$ 2000
Taxes and shipping calculated at checkout.
Size
Reusing your soil? Get a soil test with analysis and add only the amendments your soil is actually missing. Learn about soil test analysis or take our quick quiz.

Disintegrating sulfur-bentonite granules

Quality sulfur-bentonite granules made in Montana. They break down on contact with soil moisture, exposing a large surface area of sulfur to convert to plant-available sulfate.

Key things we want you to know

  • Analysis: 90%+ elemental sulfur with 8% to 10% bentonite.
  • Tested: heavy metals report below.
  • Certified: OMRI Listed.

Ingredients
  • Sulfur content: 90+ wt.-% minimum as elemental sulfur
  • Bentonite: 8% to 10%
  • Color / appearance: Light yellow-green, small split-pea-like solid
  • Bulk density: Approx. 80 lb per cubic foot
  • Source: Produced from high quality "Claus" sulfur
  • Screen specification: Smaller than 5 mesh (0.159 in opening) and larger than 9 mesh (0.079 in opening)

Lab Reports & Resources

Reviews (4)

Customer Reviews

Based on 4 reviews
50%
(2)
25%
(1)
25%
(1)
0%
(0)
0%
(0)
B
Buzzy Funny
Got my pH dialed

Needed to lower pH as per my soil analysis and KiS is the place I trust for all my amendments.

A
Anonymous
No Details

It came repackaged with no application rate. I search of the KIS organics site didn’t yield much more information. I ended up using AI for help.

A
Andy Gruenenwald
Excellent For The Southwest

I live in New Mexico where the ground and city water are both alkali. Been using this sulphur for years to acidify the ground back to a PH of around 6 for vegetable growth. Works fast and consistently. Just wish it weren't so expensive.

P
Pat B.
KIS always has what I need.

Good stuff for lowering pH on my fruit trees.

Growing at scale?

Get a freight quote