Ph of garden soil
The Ph of my garden soil is 7-7.5. I would like to lower the Ph. What do I use?
Certified GKH Gardening Expert
There are several things that you can do here. I recommend either superphosphoric acid, or citric acid in small amounts until you get where you want to be.
You could also apply sulfur to acidify the soil. I prefer wettable sulfur, since it is fast acting.
This article will give you more information on the subject: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/raise-acid-level-soil.htm