Soil pH in Fayette, IN: Lime or Sulfur?

Typical topsoil pH in Fayette, IN

Typical topsoil in Fayette, IN is pH 6.34, already right for vegetable garden (6-7). Test before adding anything.

What Fayette needs, by plant

• Already in range: lawn (cool-season grass), vegetable garden, tomatoes, strawberries, roses, pink hydrangeas.
• Sulfur: potatoes 1.8 lb/100 sq ft; blueberries 3 lb/100 sq ft over 2 applications; azaleas and rhododendrons 2.5 lb/100 sq ft over 2 applications; blue hydrangeas 2.5 lb/100 sq ft over 2 applications.

What to do next

If your test lands near 6.34, you can skip lime and sulfur for lawn (cool-season grass), vegetable garden, tomatoes, strawberries, roses, pink hydrangeas.

How mixed the soil is

Of the 135,917 surveyed acres in Fayette, IN, 68% are moderately acidic (5.5-6.5), 30% are near neutral (6.5-7.3), 1% are strongly acidic (below 5.5), 1% are alkaline (above 7.3). Mapped soils run from pH 5.4 to 7.9, a spread of 2.5 units across 259 soil components. 68% of the land falls in one class, so the county figure is a fair first guess for most yards here.

Clay, organic matter and rates

Topsoil here averages 19.1% clay and 2.21% organic matter, which this site treats as loam. Moving it one pH unit takes about 7 lb of lime or 2.3 lb of sulfur per 100 sq ft. 1% of mapped components carry free carbonate (lime already in the ground).

Fayette against the rest of Indiana

pH 6.34 is right at the Indiana median of 6.35. 44 of 92 Indiana counties have more acidic topsoil. Nationally it is more alkaline than the US county median of 6.05.

Closest in pH within the state: Clinton (6.32), Putnam (6.32), Carroll (6.33), Vigo (6.33), Henry (6.35), Pulaski (6.35), Rush (6.35), Fulton (6.36).

The range in Indiana runs from Brown at 4.97 to Hamilton at 6.74; Fayette sits 77% of the way up.