Quick-Release Soil Acidifier - Elemental Sulfur & Gypsum Mix - Hydrangea & Blueberry Fertilizer, Aluminum Sulfate Alternative, Improves Blue Hydrangea Color (2 qts. - 4 lbs)

Works good just don't put it on top or close to the plant at least small one, it Will burn your plants, mix it with the soil.

This worked out well for a plant that was all but dead and is now thriving !

It was stinky but it’s fertilizer not perfume. Very happy with the quality I immediately saw a difference I. My hydrangeas. Will order again this spring. It was expensive but worth it.

I purchased this fertilizer for my Meyer lemon tree, and the results were impressive. Within a week of applying it, the tree was in full bloom, and my greenhouse was filled with the incredible scent of lemon blossoms. The balanced NPK formula with added micronutrients clearly made a difference, and it was very easy to apply. I’ll definitely be using this on my other citrus trees in the spring.

I like this fertilizer, it really helped my Lemon and Banana plants. I personally did not notice any smell as others have stated. The blue color is interesting, I cannot verify the content, but my plants perked up not to long after application.