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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Jonathan Green Mag-I-Cal Plus Annual Program Lawn Fertilizer For All Grasses 5000 sq ftJonathan Greens Mag I Cal Plus for Lawns in Acidic & Hard Soil contains calcium carbonate in a completely soluble form that is immediately available to adjust soil pH upwards. Poor soil is often the problem in growing a great lawn and calcium is vital to many grass plant functions. When soil is compacted or too acidic, air, water and nutrients are unable to reach the roots, making it very difficult for grass to flourish. Lawns thrive in soil with
Jonathan Green’s Mag-I-Cal Plus for Lawns in Acidic & Hard Soil contains calcium carbonate in a completely soluble form that is immediately available to adjust soil pH upwards. Poor soil is often the problem in growing a great lawn and calcium is vital to many grass plant functions. When soil is compacted or too acidic, air, water and nutrients are unable to reach the roots, making it very difficult for grass to flourish. Lawns thrive in soil with slightly acidic to neutral pH levels ranging from 6.2 to 7.0. When pH levels drop between 4.0 to 6.0 weeds flourish and the grass becomes light green and spindly. Additionally, Mag-I-Cal Plus helps to break up clay and compacted soils. This improves root penetration and promotes growth by increasing biological activity and releasing nutrients trapped in the soil.
- Helps to rapidly raise soil pH increasing nutrient absorption
- Spread the product on a dry lawn soon after mowing
- Helps loosen heavy, hard packed soils
- Feeds and activates soil microbes and maximizes plant absorption of lawn food nutrients
- Fortified with highly soluble calcium carbonate, fast-acting gypsum, humates, iron and amino acids
- Use with any lawn food or annual lawn program
- Natural soil food for lawns in acidic soil and corrects acidic soil
- Loosens hard soil promoting air and water penetration for better rooting
- Safe to apply when seeding or sodding
- Best applied during the growing season when the soil is not frozen
Features
| Product Type Code | 009010901003 |
| Sub-category | Lawn Fertilizers |
| Product Type Noun | Fertilizer |
| Proposition 65 Flag | N |
| Retail Velocity Code | C |
| Sales Rank | 007 |
| Shipping Code | Y |
| Store Availability Rank | 08 |
| Unit Velocity Code | B |
| Vendor Name | JONATHAN GREEN & SONS INC |
| Vendor Number | 00652 |
| Display Only Item | N |
| Dollar Velocity Code | A |
| Feature 10 Text | Spread the product on a dry lawn soon after mowing |
| Feature 1 Text | Helps to rapidly raise soil pH increasing nutrient |
| Feature 2 Text | Helps loosen heavy, hard packed soils |
| Feature 3 Text | Feeds and activates soil microbes and maximizes pl |
| Feature 4 Text | Fortified with highly soluble calcium carbonate, f |
| Feature 5 Text | Use with any lawn food or annual lawn program |
| Feature 6 Text | Natural soil food for lawns in acidic soil and cor |
| Feature 7 Text | Loosens hard soil promoting air and water penetrat |
| Feature 8 Text | Safe to apply when seeding or sodding |
| Feature 9 Text | Best applied during the growing season when the so |
| ISPU Only Item Flag | N |
| Item Restriction Flag | Y |
| Category | Lawn Care |
| Merchandise Class Description | FERTILIZERS |
| Product Group Description | LAWN (DRY BAG) |
| Product Source Code | B |
| Assembly Code | N |
| Country Of Origin | US |
| Delivery Offered | Y |
| Department Number | 7 |
| Web Order Multiple | 1 |
| What's Included | |
| DIFM Service Code | N |
| Product Type | Lawn Fertilizer |
| Warranty Code | N |
| Old Default Base SKU | |
| Paint Code | N |
| Default Base SKU | |
| Accessory SKUs | |
| Replacement Part SKUs | |
| Proposition 65 Warning | |
| Search Field | Jonathan Green Mag-I-Cal Plus Annual Program Lawn |
| Sub Brand | Mag-I-Cal Plus |
| Brand Name | Jonathan Green |
| Reviews | 1 |
| Customer Rating | 5 |
| Local SKU Available Stores | ALL |
| Local SKU Store SKUs | 7796139 |
| Application Season | all-season |
| Container Size | 18-pound |
| Coverage Area | 5000-square-foot |
| Grass Type | all-grasses |
| OMRI Certified | no |
| Organic | yes |
| Packaging Type | bagged |
| Product Form | granules |
| Suitable for Vegetables | no |
| Water Soluble | no |
| Fertilizer Analysis (N-P-K) | 0-0-0 |
| Phosphorus Free | yes |
| Application Conditions | dry |
| Iron Included | yes |
| Pre/Post Emergent | pre-emergent |
| Primary Usage | annual-program |
| Size of Lawn | medium-(4001---9999-sq-ft) |
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
4.9 ★★★★★
Based on 274 reviews
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Product Reviews
★★★★★ 5
Apparently delicious to dogs!
Pattern Name: Half Ears (15-pack)
Bought these hoping they wouldn't be too large for my 10 lb. dog, and found that she loves them so much it doesn't matter that she can't finish one all at once. I think they are her favorite treat, and can last her days, so it is a great deal both for her, and for my wallet! (she also doesn't get them more than once every week or two!)
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Chew that pig ear doggie
Pattern Name: Half Ears (15-pack)
These are halves of pig ears. My little dachshund doesn't need the entire ear. Half is much better size. And still we break the halves in half. She loves them. Helps clean her teeth while she is chewing and destressing. I would recommend to other dog owners.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
So nice I ordered a second bag!
Pattern Name: Full Ears (25-pack)
I can’t say that ordering this brand has always been a success. I was ordering half ears. Then one bag came without an expiration date and they didn’t look so good. The next time I bought two of the smaller bags instead. Those ears seemed too small. Mostly OK though. Expiration date on the bag. But this last purchase of full ears looks really good. Expiration date on the package is 12/26. We are nearing the middle of May. So I ordered another bag. My piano teacher (weekly lesson) has two big, tough, but sweet dogs. They watch for me to come up the walk and wait at the door for their pig’s ears 🙂. Thanks! Update: second bag has September 2027 expiration date. Beautiful ears. Delivered next day and I don’t even have Prime. 🙂. Thanks!
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Best toy, the end
Style: Sport, Size: 12in, Style: Sport, Size: 12in
Combined with the Max Glow ball, this is the best dog toy available on modern planet Earth.
I have a burly 92lb. pit bull mix with highly developed prey drive, and she will chase the glow ball for hours if I let her.
The tiny sport launcher (Sport 12M) is the best, because you can still throw the ball really far, but you can also slam the ball down a few feet away from yourself so it bounces up in the air and your dog has to jump to catch it, or you can throw it up really high so it bounces 15' away or so and your dog can jump to catch it. We sometimes have to play fetch in a pretty small area, so it's nice to have the small launcher for these games. The larger launchers aren't as fun in small areas. You can play the same games but it's trickier to throw the ball correctly.
Also, the small launcher is a lot easier to carry. The small launcher fits in my dog-walk-stuff backpack (with the ball in the launcher so I don't have to dig for it later), but the big ones don't easily. The launcher also has a hole in the end so you can hang it from your bag or whatever with a carabiner. The big ones are too long for that in most cases, and swing back and forth.
Also-also my dog loves to ask for the launcher, then when I give it to her she plays keep-away and it's adorable. The big launcher I have is harder for her to balance in her mouth, so she just lays down and chews on it until it gets taken away. She's chewed on all of the four Chuck Its we've owned, but she's only broken one (a big one), but that's because she got ahold of it when no one was home. The little one in my bag is totally chewed up but still works great. I think they're sturdier than the big ones. Except for the launcher she chewed into pieces, which was our fault, the only reason we've had to replace anything was because we lost it. Usually we keep the launcher and ball in the backpack so she can't get to them and so they don't get lost, so we rarely have to replace them. There is just not a better value in toys, and the startup price is really low.
Once again I really recommend the glow ball! It doesn't get soggy no matter how wet the grass or the dog mouth is. It is fun to chase because it is slippery and it collapses when it's squeezed, so it pops out of the dog's mouth and flies away if they bite it at the wrong angle; it's really bouncy, and stays bouncy because it can't be popped; it whistles so you can usually hear it even if you can't see it; and it really glows enough for nighttime catch, even if you only have your cellphone flashlight to charge it up!
UPDATE:
I should have said, we have the 12M launcher, which means the handle is 12 inches long and it uses a medium-sized ball. The medium ball is 2.5 inches in diameter, so the launcher will fit regular tennis balls, too! But my dog won't play with regular tennis balls anymore because they aren't anywhere near as fun as the glow balls, and I think she doesn't like having gross sloshy muddy tennis balls in her mouth.
I lost my short launcher awhile back and could only get a long one locally to replace it, which reminded me that you have to lean over a lot further to use the short launcher. So if you have trouble leaning over to the point that your hand is a foot above the ground, this may be hard for you to use.
I wish Amazon would let us choose colors, because my old one was green, and the big one is orange, both of which are bright enough to see in the grass from far away, even at night.
Still, best toy!
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Reviewed in the United States on May 19, 2017
★★★★★ 5
Highly recommend.
Style: Sport, Size: 12in
Love this. Dog sitting for a dog that loves to chase balls but my shoulder doesn’t like throwing them. Got this yesterday and it’s perfect. Real arm/shoulder saver.
Seems sturdy and I was concerned that a standard tennis ball would not work. We tend to lose balls when walking because this lab insists on carrying the ball in its mouth. They work.
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Reviewed in the United States on March 22, 2026
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