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Description
magnesium plant fertilizer 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
4.3 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Attractive
Size: 4 Panel-88'', Color: Grey
The assembled product is just as described. The screens look great! I am using them to hide the cluttered shelving in my garage. The area now looks quite neat Something I must say, though, is that the assembly was extremely difficult. I had to use a silicone spray and some pounding to get the A and B poles to fit together. Also, it required a great deal of strength to stretch and hold the fabric panels so that the bars inserted in each hem lines up with the screws inserted in A/B poles. I strongly recommend having a partner to help with the assembly.
while sc and screw into poles them once inserted intetchedtne end of each pole ( and B poles barely fit together. I used silicone spray on the end and then pounded them
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Reviewed in the United States on December 12, 2025
★★★★★ 5
Works
Size: 3 Panel-102'', Color: Beige, Size: 3 Panel-102'', Color: Beige
It’s beige and not white. Once install - hard to disinstall. Need a drill to put it together
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Reviewed in the United States on May 4, 2026
★★★★★ 3
Does the job, but assembling by yourself is a nightmare
Size: 4 Panel-88'', Color: Black
Does it do the job? Yes, although as others said there are small gaps but it's not a huge deal. The price is also good. But the reason I'm giving it a 3/5 is simply because the assembly for this was a complete nightmare. I honestly don't think I would recommend this to anyone unless they have another person to help them assemble it, because doing it by myself was terrible. I don't think I'd buy this again, I think I'd opt to just spend a bit more money and save myself the trouble personally.
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Reasonably adequate room divider
Size: 4 Panel-88'', Color: Beige
I'm reviewing this as I assemble it.
Couple things:
1. I didn't expect as much assembly. I've ordered dividers before and they more-or-less came as one unit. Sometimes the panels needed screwing together. These require complete assembly and come largely as three rods: two make up vertical columns and snap together. Another one (called part "C") makes the horizontal columns and you have two of these per panel (one attaches to part "A" and the other part "B"). These parts are metal with a plastic shim. Using the wood screws to attach to part "C" is a real pain in the neck. There's not much holding the panel in place so it's a little tricky.
One tactic I've found while I'm assembling that works for the initial connections from parts A and B to their respective "C" rods is to hold the screw in place with a screw driver and then rotating the rod around the screw. This will do a number on your hands if you aren't wearing gloves. This obviously doesn't work when completing the connection.
Using a driller driver on this is really near impossible because there isn't anything you can use to secure it in place. You can use it on the first panel, but as it gets longer, it becomes increasingly difficult and because it isn't wood, it's really tight. I considered drilling larger pilot holes but since there are only 4x4=16 screws I need to screw in, I just decided to use my screw driver to complete it.
2. Also related to assembly. When completing the panels (attaching parts "A" and "B" to parts "C" that have the cloth cover on it), you have to be careful that when you tighten that side that it isn't loosening the other side. Because the pilot holes are so tight, you can end up rotating the rod, which rotates it in the same direction as looser on the original side. Having someone hold the "C" rod in place while you screw it in is probably the easiest approach. I didn't have a 2nd person, so I just had to keep flipping back and forth and tightening both sides as I screwed it in. Not the worlds biggest deal, but annoying nonetheless.
3. The way the instructions are written, they seem to suggest building this thing progressively; that is, you do panel 1, then 2, connect them together, then do 3 and connect it, etc. I took a different route that I suspect saved me quite a bit of trouble, and I assembled all four panels first and THEN connected everything together.
4. For the love of God make sure you check that the plastic tip is on the same side for every panel. Otherwise, you have to take one side apart again and reverse it. On the bright side, if this happens, you've essentially bored out the pilot holes to be the correct size... which is having me question if I shouldn't have just bored them out to the appropriate width in the first place.
5. Attaching all of the panels together is also an enormous pain in the ass unless you happen to have an 88" long elevated surface. Attaching the legs either requires you to elevate one side, which will invariably twist the inexplicably cheap material in the bottom connectors... or you can attach them sideways... or you can put this thing upright, having two people hold the panels in place while you use the allen wrench to tighten the bolts on the underside. None of those are particularly great options.
NOW on to the utility itself.
1. The panels do let some light through (I didn't believe their advertising, and that was one of the reasons that I bought beige, is that I wanted it to not be too dark). They aren't transparent though, so it isn't that far off from their description. They functionally work great, and keep the mess of wires hidden and when I'm sitting at my desk, actually reflect quite a bit of light into my office. Great!
2. My wife has described these as "the most hideous piece of furniture ever conceived of by man." So it does not have spouse approval factor. Granted, she will seldom be in my office area, so that isn't the end of the world.
3. These are really hard to align in a way that doesn't look a little tacky. There are some plastic connectors but they don't do a bang up job of keeping these in place. Each panel is slightly tilted and it's... quite obvious. I may at some point make my own improvements to these to help make them more level. It's not a particularly expensive product so I wasn't expecting much so it's fine and I'm not going to ding them on the rating because of it.
All said, would I buy this product again? Probably not. It's assembly was ~90 minutes which is about 75 minutes longer than I was anticipating spending on this (not including the 5 minute writeup that I'm doing here). But am I going to return it? Also no, if for no other reason I'd be just as annoyed taking it apart and putting it in the original box to return it.
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Reviewed in the United States on October 31, 2023
★★★★★ 5
better then expected
Color: Black
very easy to put together works perfectly! very stable for the side would buy again!
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Reviewed in the United States on May 21, 2026