For soils with a pH over 5.9, use the new lawns rate.
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Description
Jonathan Green Mag-I-Cal® for Lawns in Acidic SoilOne bag of Mag I Cal has the pH adjusting power of up to 15 bags of limestone! Rapidly raises and balances low soil pH Stimulates microbial life to create a healthy environment for grass Increases grass roots ability to absorb nutrients Product Overview Adjust your soil with Mag I Cal! Jonathan Green Mag I Cal for Lawns in Acidic Soil helps rapidly raise soil pH that's too low and stimulates healthy microbes in the soil. Healthy, lush lawns thrive in
- One bag of Mag-I-Cal® has the pH adjusting power of up to 15 bags of limestone!
- Rapidly raises and balances low soil pH
- Stimulates microbial life to create a healthy environment for grass
- Increases grass roots ability to absorb nutrients
Product Overview
Adjust your soil with Mag-I-Cal®! Jonathan Green Mag-I-Cal® for Lawns in Acidic Soil helps rapidly raise soil pH that's too low and stimulates healthy microbes in the soil. Healthy, lush lawns thrive in soils with slightly acidic to neutral pH levels ranging from 6.2 to 7.0. When soil pH levels drop between 4.0 to 6.0, this creates an environment for weeds to thrive and grows a lawn full of light green unsightly grass.
Mag-I-Cal® for Lawns in Acidic Soil contains pelletized calcium carbonate, or lime, in a completely soluble form that is immediately available to rapidly and efficiently raise soil pH upwards. Poor soil is often the problem in growing a great lawn and calcium is vital to many grass plant functions. Where it may take several bags of lime to balance low soil pH, Mag-I-Cal® for Lawns in Acidic has the power to do it all in just one easy application!
Additionally, Mag-I-Cal® for Lawns in Acidic contains humates to stimulate beneficial microbes in the soil.
Coverage Guide
Coverage:
| Size |
Established Lawns
|
New Lawns |
| 18 lb | Up to 5,000 sq. ft. | Up to 2,500 sq. ft. |
| 54 lb | Up to 15,000 sq. ft. | Up to 7,500 sq. ft. |
Where to Apply
This product can be applied throughout the United States and performs well on both cool and warm-season lawns.
When to Apply
For cool and warm season lawns, apply in either spring, summer or fall when air temperatures are at least 45°F.
Active Ingredient(s)
Calcium (Derived from: Calcium Carbonate)
Also contains non-plant food ingredients: humic acid (derived from humus), polyhydroxycarboxylic acids (derived from plant extracts).
Use With Other Products
Mag-I-Cal® for Lawns in Acidic Soil contains natural ingredients and can be applied with any of our grass seeds, weed controls, fertilizers, and insect and lawn disease controls.
How Often to Apply
- For a pH of 5.9 to 6.7:
Apply Mag-I-Cal® Plus for Lawns in Acidic & Hard Soil once per year.
- For a pH of 5.9 or below:
Apply Mag-I-Cal® Plus for Lawns in Acidic & Hard Soil twice per year (at least one month apart).
Safe for Children & Pets
Mag-I-Cal® for Lawns in Acidic Soil is a natural product, meaning it is safe for children and pets to re-enter the lawn immediately after application.
Precautions & Proper Handling
- Carefully read all instructions prior to application.
- Store in a cool, dry place away from children and pets.
- Do not ingest. May cause irritation to eyes and skin.
- Wash hands thoroughly with soap and water after handling and before eating or drinking.
- Do not apply near water, storm drains, or drainage ditches.
- Do not apply if heavy rain is expected.
- Apply this product only to your lawn or garden and sweep any product that lands on the driveway, sidewalk or street back onto your lawn or garden.
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 19 reviews
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Product Reviews
★★★★★ 5
Size seems spot on shoe is beautiful
Size: 12, Color: White
These are beautiful shoes. A great cross between the ubiquitous flat as a board shoes like vans and tennis shoes. More comfortable than the super flat shoes and more formal than sneakers. Very soft leather. Not much arch support and I don't know if an insert would fit well. I am between an 11.5 and 12 in most brands (actual foot length from heel to tip of big toe is 11 and 1/8 inches). These fit perfectly in a 12 with room for comfort. An 11.5 probably would fit but snugly. I do not agree that they should be sized down at least based on my experience. If you can get these for under eighty dollars like I did they are well worth it. I'll be wearing them all summer.
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Reviewed in the United States on May 15, 2021
★★★★★ 4
Weightless, well made. But there are problems with size
Size: 8.5, Color: White
I bought it for a teenager, for size 81/2. This, according to the dimensions on the page, is 25.9 centimeters. They came, the size was indicated correctly, but they are large for the child. Very large. They fit me, size 10. The child is disappointed.
Well made, look neat on the foot. Almost weightless
But I can't give the maximum rating. I wish the seller to deal with the size grid.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Amazing Shoe!
Size: 9 Wide, Color: Blazer Blue Hand Stain
Amazing shoe!! Comfortable to wear for long periods of time! Highly recommend!! 👍🏾
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Reviewed in the United States on November 17, 2025
★★★★★ 5
Calzado elegante para oficina de excelente calidad
Producto de excelente calidad. La entrega fue rápida y el empaque llegó en perfectas condiciones. Cumple completamente con lo descrito en la publicación.
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Reviewed in the United States on April 28, 2026
★★★★★ 3
Not A Walking Shoe
Size: 9.5, Color: Black/British Tan
In the photo online this shoe looks like it will be very comfortable. Kind of a classy Coach's Shoe. Also in the photo the heel portion of the sole looks thick and supportive. I bought them thinking they would be my go-to travel shoe. Wrong.
This is not a comfortable shoe for extended wear. Short durations, OK. The main problem is that the sole is very thin and flexible in all directions. There is no, as in zero arch support, plus that thin heel means that you tend to rock back on your heels and it feels like you're pounding the pavement.
I've worn once and I'm very disappointed. They look great, definitely high quality materials, but using them for the intended purpose of travel.... fah get about it.
If you're looking for a good looking shoe to wear around the gym and you don't intend to use the treadmill, or elliptical, then this is the shoe you want.
They would definitely be returned if I hadn't already worn them outside.
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Reviewed in the United States on August 11, 2023