You’ll get a fast‑acting powdered calcium amendment that raises lawn pH into the 6.2–7.0 range and supplies readily available calcium to loosen compacted clay and improve root penetration. It covers up to 5,000 sq. ft. per 18 lb bag, mobilizes soil‑bound nutrients, and supports aerobic microbiology for firmer, deeper roots. Test pH first, broadcast evenly, water in, and retest in 6–8 weeks; keep spreaders and kits handy if you want more specifics.
Some Key Takeaways
- Mag-I-Cal Plus is an 18 lb powdered calcium amendment formulated to quickly raise soil pH into the recommended 6.2–7.0 range.
- It supplies readily available calcium, loosens compacted or clay soils, and improves root penetration and porosity.
- Users should test soil pH first, broadcast evenly, water in, and re-test after 6–8 weeks to avoid overapplication.
- Compared to lime, Mag-I-Cal acts faster; gypsum improves structure without changing pH, and compost boosts biology.
- Pros: rapid pH correction and predictable turf response; cons: powder handling and risk of misapplication without testing.
What Mag-I-Cal Plus Is and Who Should Use It
Think of Mag-I-Cal Plus as a concentrated soil corrective designed specifically for lawns: it’s an 18 lb powdered calcium amendment (Jonathan Green model 11354) that raises soil pH, loosens compacted or clay soils, and supplies readily available calcium to improve root penetration and nutrient availability for grasses. You’ll find it’s a targeted soil amendment for homeowners who test pH, manage compacted turf, or restore nutrient mobility. You’ll follow a homeowner guide approach: test first, apply evenly, water in, and retest seasonally. You’ll use it when pH is low, roots struggle, or you want predictable soil response and healthier, denser turf. Consider pairing Mag-I-Cal Plus with a soil test kit to ensure proper timing and application rates.
Quick Specs: Weight, Coverage, Ingredients, and Key Claims
Now that you know what Mag-I-Cal Plus is and when to use it, here are the core specs you’ll rely on for planning and application. You get one 18 lb (288 oz) powder bag (Model 11354) covering up to 5,000 sq. ft., formulated for lawns and grass. Key ingredient is readily available calcium; calcium content drives pH adjustment and nutrient release. Claims include rapid pH increase, clay loosening, improved root penetration, and enhanced biological activity. You’ll appreciate clear mixing ratio and application ease for spreaders. Keep soil test results handy to match rates to your shared lawn goals. Our store focuses on lawn and landscape tools and soil conditioners helpful for homeowners who enjoy their outdoor spaces.
How Mag-I-Cal Plus Performs on pH, Clay Soils, and Turf Health
Apply Mag-I-Cal Plus when you need a fast, targeted pH correction and measurable improvement in heavy, compacted soils: the powdered calcium formulation raises soil pH into the recommended 6.2–7.0 range, loosens clay aggregates to improve porosity and root penetration, and mobilizes soil-bound nutrients so turf can access them more effectively. You’ll see firmer, deeper root development as calcium reduces aluminum toxicity and improves cation exchange. Improved porosity benefits soil microbiology, increasing aerobic activity and nutrient cycling. Use it to rehabilitate clay sites and support consistent turf health; the effects are pragmatic, cumulative, and integrate with your broader soil management plan. It pairs well with watering tools designed for homeowners, such as watering wands, to help distribute amendments evenly across the lawn.
How to Apply Mag-I-Cal Plus: Timing, Rates, and Soil-Testing Tips
When you’re preparing to correct soil pH or loosen compacted turf areas, start by testing so you can target applications precisely; use Jonathan Green’s Pro pH & Moisture Soil Tester or the Soil pH Test Kit for Lawns to map problem zones and determine how much pH adjustment is needed. After mapping, apply Mag-I-Cal Plus in spring application or as seasonal maintenance, following label rates scaled to your square footage (up to 5,000 sq. ft. per 18 lb bag). Broadcast evenly, water to activate, and avoid overlapping. Re-test after 6–8 weeks to monitor pH shifts and soil biology recovery, adjusting repeat rates accordingly. For homeowners, consider keeping essential items like pH test kits and spreaders on hand to maintain consistent, healthy lawns and gardens.
Alternatives, Pros vs Cons, and When to Buy This Product
Although Mag-I-Cal Plus excels at raising pH and loosening compacted soils, you should weigh alternatives and timing to match your lawn’s specific needs. Consider gypsum for structural improvement without pH shift, lime for slower pH change, or compost for biological enhancement; brand comparisons help you balance cost, calcium availability, and coverage up to 5,000 sq. ft. Pros: rapid pH correction, readily available calcium, improved root penetration. Cons: powder handling, possible overapplication if you skip soil tests. Buy after testing, off-season or during seasonal discounts, and when your soil pH is below 6.2 and compaction limits growth. Our store offers a range of lawn and landscape tools to help you apply and measure treatments with precision, including spreaders and soil testing kits for soil pH.
Some Questions Answered
Is Mag-I-Cal Plus Safe for Use Around Pets and Children?
Yes — you can use Mag-I-Cal Plus with care; it’s generally safe if you follow label instructions to minimize pet safety and child exposure risks. You should keep pets and children off treated areas until product is absorbed or watered in, store the product securely, and avoid direct contact during application. Use recommended rates, test soil pH beforehand, and rinse any accidental contact promptly to reduce irritation and ingestion hazards.
Can I Mix Mag-I-Cal Plus With Other Lawn Fertilizers or Herbicides?
Yes — you can mix Mag-I-Cal Plus with other fertilizers or herbicides, but you should perform compatibility testing first to avoid adverse chemical interactions. You’ll mix small batches, observe for precipitation, color change or separation, and test on a small lawn area. Follow label rates, sequence applications per manufacturer guidance, and allow community input from fellow gardeners when unsure. This practical, cautious approach preserves turf health and neighborhood trust.
How Long After Application Can I Reseed or Lay Sod?
You can reseed or lay sod 24–72 hours after application for quick pH adjustment, but many pros wait 3–7 days to let powder settle and moisture redistribute. Check seed wait times on your seed label and perform soil testing (pH) before seeding to confirm target 6.2–7.0. You’ll want consistent moisture after seeding; for sod, firm contact and watering immediately after installation make sure good root-soil integration.
Will Mag-I-Cal Plus Affect Nearby Flower Beds or Vegetable Gardens?
Yes — it can influence nearby beds if it moves into them. You’ll want to avoid direct drift or runoff because Mag-I-Cal Plus raises soil pH and provides soluble calcium that plants take up via root uptake. Practically, keep treated zones separate, water carefully, and apply on calm days. If it reaches flowers or vegetables, test soil pH and monitor nutrient responses so you and your garden community can adjust care together.
Does the Product Have Any Odor or Create Dust During Application?
You’ll notice minimal scent profile and only light application dusting if you pour carefully. The powder has a faint, earthy odor that most people won’t find intrusive. When broadcasting, use a spreader or scoop slowly to limit airborne particles; wear a dust mask and gloves for comfort and belonging with other conscientious gardeners. Wetting after application reduces lingering dust and helps the calcium begin altering pH efficiently without nuisance.
