Jonathan Green Mag-I-Cal Soil Food
Best soil amendment for homeowners struggling with acidic, nutrient-poor lawns.
This is the heavy-duty pH corrector you need if your lawn is struggling to absorb nutrients. It acts significantly faster than traditional limestone, trading the slow, dusty application of bulk bags for a precise, granular fix that actually jumpstarts your soil’s biology.
$19.99
at
Yardmastery
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Who it's for
- Homeowners needing immediate lawn recovery and nutrient uptake
- DIYers wanting a clean, dust-free application process
- Gardeners prioritizing long-term grass health and structural integrity
Who should skip it
- Budget-conscious landscapers managing large-scale properties
- Busy homeowners preferring a set-it-and-forget-it maintenance schedule
- Gardeners who skip soil testing before treating their lawn
Performance breakdown
pH Correction Speed
Rapidly adjusts soil chemistry far faster than traditional pelletized limestone.
Nutrient Bioavailability
Unlocks dormant soil nutrients, making them instantly accessible to grass roots.
Application Versatility
Safe for new seed and sod, eliminating guesswork during lawn renovations.
Microbial Support
Added humates actively foster a healthier, more resilient soil ecosystem.
Coverage Efficiency
High concentration allows one bag to treat a substantial suburban lawn.
Ease of Spreading
Granular consistency ensures uniform distribution with standard broadcast spreaders.
Key Specs
Weight
18 lbs
Form
Granular
Composition
Calcium Carbonate, Humates
pH Range
6.2 - 7.0
Container Type
Bag
Coverage
5,000 sq ft
Application Rate
3.6 lbs per 1,000 sq ft
Temperature Rating
45 deg F
Know before you buy
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Ask Metto anything about the Jonathan Green Mag-I-Cal Soil Food before you decide.