Soil pH in Clermont, OH: Lime or Sulfur?

Typical topsoil pH in Clermont, OH

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

What Clermont needs, by plant

• Already in range: lawn (cool-season grass), vegetable garden, potatoes, strawberries, roses, azaleas and rhododendrons, pink hydrangeas.
• Just outside, test first: tomatoes (off by 0.2).
• Sulfur: blueberries 2.3 lb/100 sq ft over 2 applications; blue hydrangeas 1.8 lb/100 sq ft.

What to do next

If your test lands near 6, you can skip lime and sulfur for lawn (cool-season grass), vegetable garden, tomatoes, potatoes, strawberries, roses, azaleas and rhododendrons, pink hydrangeas.

How mixed the soil is

Of the 270,571 surveyed acres in Clermont, OH, 45% are moderately acidic (5.5-6.5), 33% are near neutral (6.5-7.3), 19% are strongly acidic (below 5.5), 3% are alkaline (above 7.3). Mapped soils run from pH 5 to 7.9, a spread of 2.9 units across 290 soil components. No single class covers 60% of the county, so two gardens a few miles apart here can need opposite treatments. Test your own bed.

Clay, organic matter and rates

Topsoil here averages 19.3% clay and 1.97% 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. 7% of mapped components carry free carbonate (lime already in the ground).

Clermont against the rest of Ohio

pH 6 is 0.08 below the Ohio median of 6.08. 39 of 88 Ohio counties have more acidic topsoil. Nationally it is more acidic than the US county median of 6.05.

Closest in pH within the state: Trumbull (5.9), Harrison (5.96), Medina (5.96), Lorain (5.99), Richland (6.01), Ross (6.01), Licking (6.02), Fairfield (6.08).

The range in Ohio runs from Monroe at 5.02 to Wood at 6.6; Clermont sits 62% of the way up.