Soil pH in Lynn, TX: Lime or Sulfur?

Typical topsoil pH in Lynn, TX

Typical topsoil in Lynn, TX is pH 7.59, too alkaline for vegetable garden. Expect roughly 2.5 lb of sulfur per 100 sq ft, but only after a soil test confirms it.

What Lynn needs, by plant

• Sulfur: lawn (cool-season grass) 2.5 lb/100 sq ft over 2 applications; vegetable garden 2.5 lb/100 sq ft over 2 applications; tomatoes 2.5 lb/100 sq ft over 2 applications; potatoes 4.8 lb/100 sq ft over 3 applications; strawberries 3.7 lb/100 sq ft over 2 applications; roses 2.5 lb/100 sq ft over 2 applications; blueberries 6 lb/100 sq ft over 3 applications; azaleas and rhododendrons 5.3 lb/100 sq ft over 3 applications; blue hydrangeas 5.3 lb/100 sq ft over 3 applications; pink hydrangeas 3 lb/100 sq ft over 2 applications.

What to do next

If your test confirms pH near 7.59, work in about 25 lb of elemental sulfur per 1,000 sq ft of vegetable bed in 2 doses.

How mixed the soil is

Of the 569,484 surveyed acres in Lynn, TX, 66% are alkaline (above 7.3), 34% are near neutral (6.5-7.3). Mapped soils run from pH 6.6 to 8.8, a spread of 2.2 units across 199 soil components. 66% 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 18.3% clay and 1.67% 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. 28% of mapped components carry free carbonate (lime already in the ground).

Lynn against the rest of Texas

pH 7.59 is 0.16 above the Texas median of 7.43. 161 of 254 Texas counties have more acidic topsoil. Nationally it is more alkaline than the US county median of 6.05.

Closest in pH within the state: Dallam (7.57), Lipscomb (7.57), Crane (7.58), Gray (7.59), Medina (7.59), Crosby (7.6), Carson (7.61), Garza (7.61).

The range in Texas runs from Hardin at 4.64 to Upton at 8.19; Lynn sits 83% of the way up.