Soil pH in Potter, PA: Lime or Sulfur?
Typical topsoil pH in Potter, PA
Typical topsoil in Potter, PA is pH 5.04, too acidic for vegetable garden. Expect roughly 17.3 lb of lime per 100 sq ft, but only after a soil test confirms it.
What Potter needs, by plant
- Already in range: potatoes, blueberries, azaleas and rhododendrons, blue hydrangeas.
- Lime: lawn (cool-season grass) 17.3 lb/100 sq ft over 4 applications; vegetable garden 17.3 lb/100 sq ft over 4 applications; tomatoes 17.3 lb/100 sq ft over 4 applications; strawberries 11.5 lb/100 sq ft over 3 applications; roses 17.3 lb/100 sq ft over 4 applications; pink hydrangeas 13.8 lb/100 sq ft over 3 applications.
What to do next
If your test confirms pH near 5.04, spread about 173 lb of ground limestone per 1,000 sq ft of vegetable bed in 4 doses, ideally in fall.
How mixed the soil is
Of the 692,903 surveyed acres in Potter, PA, 84% are strongly acidic (below 5.5), 15% are moderately acidic (5.5-6.5), 1% are near neutral (6.5-7.3). Mapped soils run from pH 4.1 to 7.5, a spread of 3.4 units across 959 soil components. 84% 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 16.9% clay and 6.04% organic matter, which this site treats as clay. At 6.04% organic matter the soil buffers like a heavier one, which pushes it into the clay bracket. Moving it one pH unit takes about 11.5 lb of lime or 3.4 lb of sulfur per 100 sq ft. 0% of mapped components carry free carbonate (lime already in the ground).
Potter against the rest of Pennsylvania
pH 5.04 is 0.27 below the Pennsylvania median of 5.31. 10 of 67 Pennsylvania counties have more acidic topsoil. Nationally it is more acidic than the US county median of 6.05.
Closest in pH within the state: Clearfield (4.98), Pike (4.99), Carbon (5), Cameron (5.01), Venango (5.05), Cambria (5.06), Somerset (5.06), Clarion (5.07).
The range in Pennsylvania runs from Forest at 4.57 to Greene at 6.07; Potter sits 31% of the way up.