Soil pH in Morgan, UT: Lime or Sulfur?

Typical topsoil pH in Morgan, UT

Typical topsoil in Morgan, UT is pH 6.66, already right for vegetable garden (6-7). Test before adding anything.

What Morgan needs, by plant

• Already in range: lawn (cool-season grass), vegetable garden, tomatoes, roses.
• Just outside, test first: strawberries (off by 0.2), pink hydrangeas (off by 0.2).
• Sulfur: potatoes 2.8 lb/100 sq ft over 2 applications; blueberries 3.9 lb/100 sq ft over 2 applications; azaleas and rhododendrons 3.2 lb/100 sq ft over 2 applications; blue hydrangeas 3.2 lb/100 sq ft over 2 applications.

What to do next

If your test lands near 6.66, 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 328,275 surveyed acres in Morgan, UT, 53% are near neutral (6.5-7.3), 41% are moderately acidic (5.5-6.5), 6% are alkaline (above 7.3). Mapped soils run from pH 5.6 to 8.5, a spread of 2.9 units across 142 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 22.1% clay and 4.02% 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. 11% of mapped components carry free carbonate (lime already in the ground).

Morgan against the rest of Utah

pH 6.66 is 1.29 below the Utah median of 7.95. 0 of 29 Utah counties have more acidic topsoil. Nationally it is more alkaline than the US county median of 6.05.

Closest in pH within the state: Wasatch (6.77), Summit (6.95), Weber (7.09), Cache (7.13).