Soil pH in Wilkinson, GA: Lime or Sulfur?

Typical topsoil pH in Wilkinson, GA

Typical topsoil in Wilkinson, GA is pH 5.4, too acidic for vegetable garden. Expect roughly 3.3 lb of lime per 100 sq ft, but only after a soil test confirms it.

What Wilkinson needs, by plant

• Already in range: potatoes, blueberries, azaleas and rhododendrons, blue hydrangeas.
• Just outside, test first: strawberries (off by 0.1).
• Lime: lawn (cool-season grass) 3.3 lb/100 sq ft; vegetable garden 3.3 lb/100 sq ft; tomatoes 3.3 lb/100 sq ft; roses 3.3 lb/100 sq ft; pink hydrangeas 2.4 lb/100 sq ft.

What to do next

If your test confirms pH near 5.4, spread about 33 lb of ground limestone per 1,000 sq ft of vegetable bed, ideally in fall.

How mixed the soil is

Of the 244,717 surveyed acres in Wilkinson, GA, 65% are moderately acidic (5.5-6.5), 35% are strongly acidic (below 5.5). Mapped soils run from pH 4.6 to 6, a spread of 1.4 units across 65 soil components. 65% 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 9.8% clay and 1.39% organic matter, which this site treats as sandy. Moving it one pH unit takes about 3 lb of lime or 1.2 lb of sulfur per 100 sq ft. None of the mapped components carry free carbonate.

Wilkinson against the rest of Georgia

pH 5.4 is 0.07 above the Georgia median of 5.33. 103 of 159 Georgia counties have more acidic topsoil. Nationally it is more acidic than the US county median of 6.05.

Closest in pH within the state: Emanuel (5.39), Washington (5.39), Rabun (5.4), Towns (5.4), Bleckley (5.41), Burke (5.41), Glascock (5.41), Wilkes (5.41).

The range in Georgia runs from Clinch at 4.64 to Elbert at 5.68; Wilkinson sits 73% of the way up.