• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide

Sweet or Sour, Alkaline or Acid Soil pH

Sweet or Sour? I’m not talking about pickles, but rather the pH of your soil.

Acidic soils with pH below neutral (7.0) are often referred to as sour, while alkaline soils with a pH above 7.0 are called sweet.  Soil pH influences which nutrients in the soil are available for the plants to absorb and utilize for growth.

Blueberries, azalea and red maples are examples of acid-loving plants. Clematis, crabapple and spirea are a few of the alkaline tolerant plants.

Always start with a soil test before trying to change the pH. Lime is used to sweeten soils while sulfur is often used to lower pH. Since adjusting pH takes large amounts of energy and materials, it is best to grow plants suited to your soil pH.

A bit more information: It is best to have your soil tested by a certified soil testing lab. Most University Extension services either have soil testing labs or can recommend labs in your area.

Related

Upcoming Appearances


Jan. 29, 2022
WCBA's Home Building &
Remodeling Expo

West Bend, WI
(in-person event)

Feb. 11-13, 2022
PBS Wisconsin
Garden & Landscape EXPO

Madison, WI
(in-person event)

Watch Melinda's past webinars ON DEMAND
through 12/31/21.

Learn More

Book an Appearance

Learn More

Enter to Win
Your Best Garden & Landscape in 6 Lessons DVD set

ENTER NOW