Earth Science Fast Acting Sulfur Granules – 5lb – Soil pH Reducer, Lowers pH Instantly, Reduces Nutrient Runoff, Improves Growth & Color for Acid-Loving Plants, Long-Lasting Lawn Care Supplement

Works fast and effectively - I’ve bought 2 bags of these now. This has allowed me to container grow blueberries, raspberries, blackberries, grapes, and so many other acid loving plants. And I verified the soil ph changed with soil testing kids! For the berries I put some in with fertilizer every 1-2 months to keep the soil acidic (it’s not an apply once and done). I like that they’re small pellets so you can adjust the ph level more finely.

Great for the garden and fruit trees!

This is perfect and has been helping keep my hydrangea soil in check to keep my flowers blue! Working well, would recommend and plan to purchase again when I run out

It works great. My first thought was it doesn't work, but then after a little time, it works just like it says. Be patient!

Just started using this to lower the soils pH.

dissolves rapidly- maybe too fast used to reduce soil pH probably not much different from much cheaper ordinary powdered sulfur expensive

Not sure how effective this was at lowering the ph of my soul, which is why I bought it. There was no drop in ph levels after consistent use all year 🤷🏻‍♂️.

I used this on my young blueberry shrubs. Good product.