Jonathan Green MAG-I-CAL PLUS for Lawns | Alkaline & Hard Soil Soil Food (5,000 sq ft)

Jonathan Green MAG-I-CAL PLUS for Lawns in Alkaline + Hard Soil is a carefully engineered soil food designed to support turf health in challenging soil conditions. The formula works to gently lower soil pH, helping nutrients become more available from common lawn foods. It also helps to loosen dense, compacted layers and energize a living soil ecosystem by supporting beneficial microbes. A fast-acting sulfur component accelerates pH adjustment, creating a more welcoming environment for root growth and overall lawn vigor.

Key benefits

• Lower soil pH in alkaline or hard soils to improve nutrient release from lawn foods.
• Loosen compacted soil to promote deeper root growth and better air exchange.
• Stimulate soil microbes, contributing to a more dynamic and resilient soil ecosystem.
• Fast-acting sulfur aids quicker pH adjustment for potential nutrient availability improvements.

Real-life use cases

• Spring prep for lawns facing alkaline soil challenges, helping roots establish early season vigor.
• When turf feels dense or resistant to growth, MAG-I-CAL PLUS can support soil loosening for easier root penetration.
• Soils with lime or high alkalinity may benefit from pH-balancing action tied to nutrient uptake.

How it works

The product blends sulfur with other soil-building components to lower pH and boost microbial activity, working alongside standard lawn foods to help nutrients move more readily into the root zone. The result can be a more responsive soil environment without relying on dramatic change.

For best results, use MAG-I-CAL PLUS as part of a regular lawn care routine, following label directions for your 5,000 sq ft coverage. The formula is designed to complement existing lawn foods, potentially enhancing nutrient access and root performance over time.

Why choose Jonathan Green

Jonathan Green has a long-standing focus on practical lawn solutions that address real-world soil conditions. MAG-I-CAL PLUS is formulated to support lawns that contend with alkaline or hard soils, offering a targeted approach to soil pH balance, soil structure, and microbial vitality without promising guaranteed outcomes.

How to apply

• Read the label carefully and apply according to the recommended coverage for 5,000 sq ft per bag.
• Water after application to help nutrients reach the root zone.
• Reassess lawn performance over several weeks and adjust your routine as needed.