K-mag Granular

K-Mag Granular is a naturally mined, Langbeinite-based fertilizer that delivers sulfur, potassium, and magnesium in a single granular blend. It supplies 22% sulfur, 21.5% potassium, and 11% magnesium to support strong roots, healthy foliage, and steady nutrient uptake, and it is OMRI-listed for organic use.

At a glance

• Type: Naturally mined Langbeinite mineral fertilizer (granular)
• Sulfur: 22%
• Potassium (K): 21.5%
• Magnesium (Mg): 11%
• Certification: OMRI-listed for organic use
• pH: Will not change soil pH

Best for

• Organic gardening and soil rebuilding
• Seedling starts and germination mixes
• Containers, raised beds, and garden plots
• Targeted boosts of sulfur, potassium, and magnesium

How to use

Apply the granular blend as part of a balanced nutrient program for containers, raised beds, and garden plots needing sulfur, potassium, and magnesium. Its pH-stable, non-acidifying performance lets it integrate smoothly with living organic soils and other natural amendments.

About The Soil Makers

The Soil Makers offer naturally mined, OMRI-approved mineral inputs that integrate cleanly into living organic soils and soil-rebuilding programs.