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Description
plant fertilizer with magnesium Southern Ag 7739964 Magnesium Sulfate FertilizerMagnesium Sulfate Fertilizer Epsom Salts Dry Magnesium Fertilizer for Palms, Citrus, Trees, Shrubs, Roses, Vegetables, Annuals, and Turf Southern Ag Magnesium Sulfate Fertilizer is a dry, fertilizer grade magnesium source designed to help correct magnesium deficiency in a wide range of outdoor plants. Magnesium is an essential secondary plant nutrient that supports healthy green color, strong plant growth, and normal chlorophyll production. Magnesium
Magnesium Sulfate Fertilizer | Epsom Salts
Dry Magnesium Fertilizer for Palms, Citrus, Trees, Shrubs, Roses, Vegetables, Annuals, and Turf
Southern Ag Magnesium Sulfate Fertilizer is a dry, fertilizer-grade magnesium source designed to help correct magnesium deficiency in a wide range of outdoor plants. Magnesium is an essential secondary plant nutrient that supports healthy green color, strong plant growth, and normal chlorophyll production.
Magnesium deficiency commonly appears as yellowing between the veins of older leaves while newer growth may remain green. On palms, symptoms often begin as yellowing along older fronds or leaflets, while the center portion of the palm blade stays green. If left uncorrected, older leaf tips may turn brown and remain damaged.
This easy-to-apply dry fertilizer helps supply water-soluble magnesium directly to the soil. Simply spread the recommended amount over the treatment area and water in thoroughly. No tank mixing or spraying is required.
Key Benefits
| Feature | Benefit |
|---|---|
| Corrects Magnesium Deficiency | Helps restore deep green plant color caused by magnesium shortage |
| Dry Fertilizer Application | No mixing, spraying, or tank equipment required |
| Ideal for Palms | Helps reduce yellowing on older palm fronds caused by magnesium deficiency |
| Broad Plant Use | Suitable for citrus, palms, trees, shrubs, roses, vegetables, annuals, and turf |
| Soil-Applied Formula | Spread evenly over soil and water in for best results |
| Fertilizer-Grade Magnesium Sulfate | Supplies water-soluble magnesium for plant uptake |
Product Overview
| Product Name | Southern Ag Magnesium Sulfate Fertilizer |
| Product Type | Dry fertilizer |
| Primary Nutrient | Magnesium |
| Guaranteed Analysis | Magnesium 15.0% |
| Magnesium Source | Magnesium sulfate |
| Application Method | Dry soil application only |
| Spray Application | Not for spray application |
| Best Soil pH Range | Most plants perform best around 6.0–6.5 pH |
| Common Use Sites | Palms, citrus, trees, shrubs, roses, vegetables, annuals, lawns, and turf |
Where to Use
Southern Ag Magnesium Sulfate Fertilizer may be used on:
| Plant Type | Use Purpose |
| Palms | Helps correct magnesium-related yellowing on older fronds |
| Citrus Trees | Supports healthy green foliage and nutrient balance |
| Trees & Shrubs | Helps correct yellowing caused by magnesium deficiency |
| Roses | Can be applied during regular fertilization |
| Vegetables | Supplies magnesium for healthier plant growth |
| Annuals | Helps maintain strong color and vigor |
| Lawns & Turf | Helps improve turf color where magnesium is deficient |
Application Rates
After applying, water in thoroughly to move the fertilizer into the soil and help prevent dry granules from remaining on foliage.
| Application Area | Recommended Rate |
| Palms | 1/2 to 5 lbs. per palm, depending on size |
| Palms by Height | Use 1 lb. per 5 feet of tree height, up to 5 lbs. per tree |
| Large Shrubs & Trees | 1/2 to 1 lb. per 5 feet of canopy width |
| Roses | 1 to 2 tablespoons per bush each time you fertilize |
| Lawns or Large Areas | 1/2 to 1 lb. per 100 sq. ft. |
| Vegetables | 1/4 to 1 lb. per 100 sq. ft. |
How to Apply
- Measure the treatment area or plant size to determine the correct amount.
- Spread the dry fertilizer evenly over the soil surface.
- Keep granules off tender foliage when possible.
- Water in thoroughly after application.
- Repeat only as needed and according to label directions.
Important Use Notes
| Use Guideline | Details |
| Water In After Application | Helps move nutrients into the soil and reduces risk of plant injury |
| Do Not Spray | This product is fertilizer grade and not intended for spray applications |
| Avoid Tender Plant Parts | Dry material may injure delicate foliage or tender growth |
| Old Damaged Leaves | Previously damaged leaves may not fully recover, but new growth can improve |
| Soil pH Matters | Magnesium availability can be affected by soil pH; many plants grow best around 6.0–6.5 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Excellent product, but keep it away from chewers.
Style: 2.5" Ball
This is a very strong and effective launcher and could have lasted a very long time had my 9 month old not chewed the ball claw end off. I will buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
★★★★★ 5
Our Dog Loves This Ball Thrower So Much
Style: 2.5" Ball
Works excellent for dogs that like to fetch! Our family dog loves this toy. He will bark and jump as soon as he sees us pick it up. The dog next door to us gets excited when he sees us play with our dog with this dog ball thrower. Its that good for dogs who love to fetch and run. Perfect for the young and elderly to play fetch with a pet dog. If you have back or shoulder problems works very well. You don't have to bend down and pick up a slobbery ball. Nope you use this to pick up, grip up and grab the ball. Wish every dog could have this ball thrower in their lives. It has changed the way we play fetch with our dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 5, 2025
★★★★★ 4
Good Pet Ball Launcher
Style: 2.5" Ball
I bought to throw balls for my Aussie. He does not like to tennis ball that came with it and chewed it up in less than one play time. The launcher seems to be of good quality and works well. We bought different balls made for launchers that work well.
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Reviewed in the United States on October 24, 2025
★★★★★ 5
Must-Have for Dog Owners (Whow have dogs that like to fetch)
Style: 2.5" Ball
Soon as this launcher arrived I went outside with the dogs to try it out. Long story short: This is a great fetch toy. I am able to launch the ball pretty far with little to no effort, and picking the ball back up is as easy as grabbing it with my own hand.
The toy itself is very sturdy, so much so this is the only fetch-toy I'll ever have to buy. Considering how durable it is, I don't think I'll ever need to buy a replacement. I believe Chuck-It is the most popular option, and because this is the first fetch-toy I purchased, I can't really compare it to anything else. A few outlier reviews said the ball was difficult to launch, and I have to disagree. It has been so easy to use I can't possibly see what the problem is. And no, upper body strength is not a factor as I virtually have none. People can get great distance (Half the length of a football field by my eye) in one simple, easy motion. And if other products can launch the ball farther, so what? How far is far enough? Is your dog going to throw a fit because it went 40 meters instead of 50? No. They will not. For anyone upset this toy doesn't launch far enough, ask yourself this: Is the toy for their dog? Or the human who bought it?
The bottom line is this: It feels like it's built to last, it's inexpensive, and it does what it is supposed to do. So long as a toy is "good enough" I don't see the point in splitting hairs and trying to determine which fetch toy is the absolute best.
Saying it's good enough is a bit misleading though. I can't imagine how a dog toy like this could be any better.
It's a must-have for any dog owner. Unfortunately, only one of my pups likes to fetch...
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Reviewed in the United States on January 6, 2020
★★★★★ 5
Works Like a Charm!
Style: 2.5" Ball
WoW!! This thing is pretty cool! It can pick the ball up off the ground - and with little effort - It can throw the ball 3X Higher and Further than I ever could! It wont hurt my elbow or wrist ( way better than before when I was wearing myself out ) I don’t know how I ever got along without it!! It's a must have if your dog loves playing ball. :-)
Update: I've had this For 7 Months Now- it looks and works Great just like the day I bought it- Thumbs up!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2024
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