Greenway Biotech Ammonium Sulfate 21-0-0 Fertilizer Contains 21% Water Soluble Nitrogen & 24% Sulfur Suitable for Acid Loving Plants- Lawn Fertilizers to Lower pH Levels in Alkaline Soil- 2 Pounds

This stuff made my grass a beautiful green.

I didn't know until I started growing onions, that every leaf equals a layer(ring) on the plant. 21-0-0 is recommended by the country's top onion farm in south Texas, where I get my onion plants. This product has helped me produce awesome onions.

So I bought a 25lb bag several years ago. The product delivered was much finer and crystaline in form, and easily water soluble. I bought a new 25lb bag this month, and the product is much larger and opaque instead of fine crystaline granules. I will say, it works great for spreading over a lawn or around the base of plants or a fruit tree. But for foliar application, I would probably have to measure it out and dissolve it in hot water stirring it with a spoon, then add that to a watering can and dilute with cold water. Other than that, I don't have anything bad to say about the product.

I needed some ammonium sulfate, which I will be using to fertilize blueberry bushes. This stuff came in a USPS Medium flat rate box and was enclosed in a thick plastic clear bag. The granules look just like what is pictured.It mixes very well in water and after about a months use of this stuff, it appears to be helping my blueberry bushes grow a lot. I used one teaspoon of this stuff in 2 gallons of water twice a week per bush. They weren't growing much before, but now they are growing like crazy.It also appears to green up my Bermuda grass (I did a little test on a patch of grass), although I probably wouldn't use this for your lawn unless you have alkaline soil.Overall, this is some great stuff. I highly recommend it.

Works great, packaged well so wouldn't tear in shipment. Greens yard well if you have alkaline or clay yard like mine. Noticed difference very quickly, especially after first rain. Two tips if you have the time-use a wheeled spreader (like for grass seed, will save you so much time), and 2-water the yard afterward. It forces the sulfur into the soil so it doesn't dissipate on just the top layer above ground. This will definitely increase its effectiveness by 50%. Really works great especially for the price. The only other item I could find was at lowes and was 1/5 size for $10.

Use on blueberry bushes in drip line. Easy to use and very soluble.

I'm extremely unhappy with this fertilizer. Not because it doesn't do a good job because I don't know if it does or doesn't. But because there are no directions on the Product Packaging and I have no idea how to use this product and so it sits.

You never know what you'll get now-a-days in the mail order business. I did not have this chemically tested but I sprinkled some on my lawn and that section is two shades greener than the rest of it. I use this for blueberry fertilizer. The family was worried because of the chemical name, but the product is on almost every loaf of commercially available bread, so it's obviously safe for garden fertilizer.