Jonathan Green Mag-I-Cal Soil Food for Lawns in Acidic Soil
Jonathan Green Mag-I-Cal® for Lawns in Acidic Soil is formulated to quickly improve your lawn's pH balance, creating an ideal environment for healthy growth. This granular product delivers immediately available calcium, effectively raising soil pH to the optimal range of 6.2-7.0. Its pH adjusting power is equivalent to 15 bags of limestone. Enriched with humates, it also stimulates beneficial soil microbes, enhancing nutrient absorption from fertilizers. Mag-I-Cal is safe for use on newly seeded or sodded lawns, ensuring robust turf development.
$19.99
Owner Satisfaction
4.4
/ 5
Category Rank
4022
/ 4425
#4022 in Fertilizers
Price vs Category Average
-68%
Below average
Form
Granular
/ Granular
Who it's for
- Rapid pH Correction
- Non-Messy, Granular Application
- Dual Mineral Enrichment
Who should skip it
- Higher Cost per Application
- Requires Frequent Reapplication
- Soil Test Dependency
Key Specs
Form
Granular
Package Weight
18 lb
Coverage
5,000 sq ft per 18 lb bag
Recommended Application Rate
3.6 lbs per 1,000 sq ft
Shelf Life
Up to 2 years
Active Ingredients
Calcium carbonate, humates
Solubility
Completely soluble form
Water-In Instructions
Irrigate for 15-30 minutes after application
Features
- Rapidly raises soil pH efficiently
- pH adjusting power equals 15 bags of limestone
- Fortified with immediately soluble calcium
- Humates stimulate beneficial soil microbial life
- Improves overall nutrient absorption by grass
- Safe for use when seeding or sodding
- Balances soil chemistry and biology
- Granular form for easy application
What customers say
Customers overwhelmingly praise Jonathan Green Mag-I-Cal as a superior, modern solution for acidic soil, favoring its ease of use over traditional lime. Reviewers highlight the product's rapid effectiveness, noting visible improvements in lawn health, color, and density shortly after application. Its granular form makes spreading simple for DIY enthusiasts. The core benefit centers on efficient pH correction, which boosts fertilizer performance for a greener, denser lawn. While performance is exceptional, the primary drawback mentioned is the premium price point compared to bulk alternatives. Success is maximized when users confirm soil acidity beforehand. Overall, for those needing a fast, clean remedy for pH imbalance, Mag-I-Cal earns strong recommendations despite the higher cost.
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