Gypsum and Sugar for Clay Soil: Myth vs. Reality

Homeowner read about gypsum + sugar for hard clay; asks if it works.

Gypsum: Limited Use

Only helps if soil tests high in sodium (sodic soils). Does not improve pH. Montana State University: "Only in rare cases should gypsum be used." For typical clay, it's ineffective.

Sugar: Waste of Money

No soil structure benefit. Some claim it feeds fungi (raising pH—bad for grass); others say it clogs root Casparian strips. Either way, it doesn't fix clay.

Real Clay Solutions

• Get a proper soil test (contact Gwinnett County Extension for UGA lab in Georgia)
• Add organic matter (compost) to improve structure
• Consider calcined clay, sand, or peat for severe cases

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