For soil, a lesser pH range means an acidic soil, and a high pH range means an alkaline soil. Some plants only survive on acidic soil. They just won’t thrive with too high pH. Therefore, your concern might be how to add acid to your soil.
Flowering plants: hydrangea, camellias, wood anemone, azaleas, rhododendrons, etc.Vegetables: examples of vegetables with acid-loving plants are cucumbers, sweet corn, broccoli, and onions.Trees: examples are beech, dogwood, oak, and evergreen trees.Fruits: blueberries, cranberries, and huckleberries are all acid-loving plants fruits.
Soil Testing : keep in mind that there are some things you need to do first before adding acid to your soil.Adding Acid to Soil: Sulfur: good soil amendment for acid-loving plants.Adding sphagnum peat moss: adding sphagnum peat moss is one way you can increase soil acidity.
For soil, a lesser pH range means an acidic soil, and a high pH range means an alkaline soil. Some plants only survive on acidic soil; they just won't thrive with too high pH so you might need to add acid to your soil.