Most pH advice skips the only question that matters: what number are you starting from. These six areas cover the scale, moving it up or down, and the plants that care the most. Guides for each block are in progress, so the blocks are not links yet.
Soil pH Explained
The scale, the ranges, and why a single number matters so much
Lowering pH
Sulfur, acidifiers, and honest answers on coffee grounds
Raising pH & Liming
Lime types, rates, timing, and the alternatives
Plant pH Preferences
The ranges plants actually want, from blueberries to hydrangeas
Acidic Soil
Signs you have it, what thrives, and when to correct
Alkaline Soil
Causes, plants that cope, and how to bring pH down