What Is Sweet Soil and Is It Good for Plants?

"Sweet soil" is an old term for alkaline (high pH) soil—settlers tasted soil to judge fertility. Sweet = good for crops; sour (acidic) = poor. Sugar on soil would taste sweet but wastes sugar—it doesn't change pH meaningfully. Sweet soil benefits alkaline-loving plants; harms acid-lovers (azaleas, blueberries). Test pH, amend appropriately. Don't taste soil—especially if chemicals were used.