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.

This is the first product that we have used that helped our hydrangea flowers bloom blue!

It works as described.

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!

Seems simple to apply, the ph meter likes the results, the plants have yet to decide.

It’s a good product but I will update my full review next year . From what I know it takes some months to be effective .

Perfect

Overpriced for quantity