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Description
granular fertilizer for potted plants Sulfate of Potash 0-0-50 Granular FertilizerSulfate of Potash 0 0 50 Granular Fertilizer Southern AG Sulfate of Potash 0 0 50 Granular Fertilizer is a concentrated potassium fertilizer designed to help correct potassium deficiencies in low potassium soils. With a 0 0 50 fertilizer analysis, it delivers soluble potash without adding nitrogen or phosphate, making it a targeted solution when plants need potassium support for stronger roots, sturdier stems, healthier tubers, and improved overall
Sulfate of Potash 0-0-50 Granular Fertilizer
Southern AG Sulfate of Potash 0-0-50 Granular Fertilizer is a concentrated potassium fertilizer designed to help correct potassium deficiencies in low-potassium soils. With a 0-0-50 fertilizer analysis, it delivers soluble potash without adding nitrogen or phosphate, making it a targeted solution when plants need potassium support for stronger roots, sturdier stems, healthier tubers, and improved overall plant vigor. The product contains granular potassium sulfate and is intended for soil application, not spray use.
This granular potash fertilizer is suitable for vegetables, flowers, shrubs, and lawns. It may also be used to help address potassium deficiency in plants such as avocado, beans, corn, cherries, citrus, grapes, palms, and roses. Potassium plays an important role in root growth, water regulation, photosynthesis, plant strength, winter hardiness, and disease resistance.
Key Product Benefits
| Benefit | How It Helps Plants |
|---|---|
| Corrects potassium deficiency | Supplies a high level of soluble potash for potassium-low soils |
| Supports stronger root systems | Encourages healthier root growth and better plant establishment |
| Improves plant strength | Helps build stronger stems, roots, and tubers |
| Promotes stress tolerance | Supports plants during adverse growing conditions, including cold or drought stress |
| Versatile garden use | Suitable for lawns, vegetables, flowers, shrubs, and select fruiting plants |
| Granular application | Easy to spread over the treatment area and water into the soil |
Product Specifications
| Product Detail | Information |
|---|---|
| Product Name | Southern AG Sulfate of Potash 0-0-50 Granular Fertilizer |
| Fertilizer Analysis | 0-0-50 |
| Active Nutrient | 50% Soluble Potash, expressed as K₂O |
| Derived From | Sulfate of Potash |
| Product Form | Granular |
| Chlorine Content | Less than 2.00% |
| Spray Use | Not for spraying |
| Best Used For | Potassium-low soils |
| Application Method | Spread evenly over the treatment area and water in thoroughly |
Recommended Use Chart
| Use Area | Application Guidance |
|---|---|
| General treatment area | Apply at 0.5 lb. per 100 sq. ft., then water in |
| Lawns with other fertilizers | Apply in spring and early fall at 1 lb. per 1,000 sq. ft. |
| Lawns as sole nutrient source | Apply in spring and early fall at 4 lb. per 1,000 sq. ft. |
| Trees | Apply around the drip line at 1/2 lb. per inch of trunk diameter |
| Shrubs and flowering plants | Mix lightly into soil at 1/4 cup per every 2 ft. of plant height |
| Bedding plants before planting | Apply 1 lb. per 250 sq. ft. and mix thoroughly into soil |
| Established bedding plants | Apply 1 lb. per 500 sq. ft., work lightly into soil, and water thoroughly |
Best For
| Plant Type | Suitable Use |
|---|---|
| Vegetables | Helps support stronger roots, stems, and tubers |
| Flowers | Promotes stronger, healthier growth |
| Shrubs | Supports plant strength and seasonal resilience |
| Lawns | Helps improve potassium levels in deficient turf areas |
| Citrus, grapes, palms, roses, and fruiting plants | Helps correct potassium deficiency when soil levels are low |
Application Instructions
Spread the granules evenly over the intended treatment area, keeping the product on the lawn or garden soil. After application, water thoroughly to help move the nutrients into the root zone. Avoid applying near water, storm drains, or drainage ditches, and do not apply when heavy rain is expected. Sweep any granules that land on sidewalks, driveways, or streets back onto the lawn or garden area.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
Based on 803 reviews
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Product Reviews
★★★★★ 5
Works well and is easy to install.
Model: SLH20025, Model: SLH20025
I was sound and heat insulating a generator bay in my class A RV so I did three tests before and during material application: I did a sound level test to see how effective the material was for my application, a "stickiness" test, and a flammability test. This was indoors on a dry 78°F day. From beginning to end, the entire process, including testing, took 5 hours to install 25 sqft or material in a very complex area. One hour for cleaning, 3 hours for installation, and 1 hour for test setup and testing.
Using a sound meter, I took before and after readings and determined that I reduced the sound level by 2.2 db (40% energy decrease) with a noticeable decrease in sound and frequency. The generator bay is located under the master bedroom in the aft portion of the coach. The sound went from a rattling, vibrating generator noise to a more tolerable low level rumble.
The material was easy to apply. I did some testing prior to application and determined that surface preparation is key. I cleaned my painted metal surface and then degreased with acetone and the material stuck well. Be careful and purposeful when you apply the material because once it was stuck to the metal, it was quite difficult to remove or reposition.
Since it was going to be installed into a gasoline powered generator bay located under our sleeping quarters, I did some flame testing to determine the level of risk. Although not highly flammable after installation, my testing revealed that the PE used will catch on fire under certain circumstances. In order to reduce the risk, I used aluminized duct tape to ensure that all the edges were sealed and the PE was not exposed to direct flame in the event of a fire. I also decided to install an automatic fire extinguisher as an added precaution. In all fairness there should be one installed in the generator bay anyway.
All in all, I am very satisfied with the product and the results. I have recommended this product to my other RV owner friends.
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Reviewed in the United States on April 13, 2025
★★★★★ 5
Great product. Best value i could find
Model: SLH20025
I'm using talk to text, so forgive any grammatical and spelling errors.
I ordered this product after doing a bit of research on sound dampening materials. I had been doing car stereo for quite some time since my teens. Itook a break for 20 years or so. I'm now 40 and back in the day there was dynamat. And that was about it. as irecently bought a new 2017 F350 crew cab. I wanted to put in a new stereo system and being that it was my dream truck. I was going to put in my dream stereo. But before I could do that, I needed to start with the sound deadening. I looked into today's leading product and found a company called resonx. Had taken their place as king of the hill in sound deadly. I researched their products and found the materials they were built from and Silas was the closest match at the best price I used Silas Max. First, then Silas 3 and 1 hybrid over that on all exterior panels. Then, on the interior panels. I used the 3 and 1 hybrid . on the floor I used Silas Max. Then, the 3 and 1 hybrid, then Silas liner over that the car is incredibly quiet . As far as sound dampening and deadening, it works very well for the money really can't beat it. Do your homework no How and where to apply it? And you really can't go wrong or about $400. I did. What would have cost me easily? Two thousand in other brands highly recommend the product prep work.Is everything do your homework?Do it right and you will be happy with this stuff
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Reviewed in the United States on May 6, 2026
★★★★★ 4
Not simple, nor easy
Model: SLH20025
I wanted to add sound proof material to the bare metal areas on the floor of my Toyota Tundra. The area behind the front seats had a haphazard application of sound deadening material. There were several complications to the project which may come up in other vehicles.
First is the floor covering which had plastic pillars underneath to support any weight on the cover. The sound deadening material had to be cut out so these pillars would rest on the bare metal of the floor. This required a lot of cutting with a utility knife and at times heavy scissors. The instructions say to make a template before cutting the material and I did this for the driver's side. This doubled the amount of time needed to install it. On the passenger's side I laid the rectangles of material with the backing on and pressed the floor covering onto the material. This showed where the support pillars were, which I then cut out.
Second is peeling the backing off the material. This can be very difficult as the adhesive sticks to it. The backing came off in multiple pieces and sometimes took 5 minutes for one piece. They say to wear gloves when handling the material but this is impossible when trying to get the backing off.
Third is pressing the material onto the metal. The instructions say to use a roller, but this was impossible for the irregular surface I was working on. The hand is the best tool to press the material on.
The material seems to be of high quality and I expect it will reduce the road noise in the cab.
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Reviewed in the United States on May 18, 2025
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
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Reviewed in the United States on May 20, 2026