Where Can I Purchase Aluminum Sulfate or Sulfate?

Question

I would like to lower the pH level in my soil for roses. Soil is mostly mushroom compose and rose fertilizer.

Answer 1

I would make an inquiry about aluminum sulfate at your local garden centers for availability. They are sure to have some in stock and, if not, be able to special order it for you. I would also search on-line - Amazon might be a good place to start.

For more information on rose soil preparation, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/roses/rose-soil-preparation.htm