Soil Test #3: The Worm Test:

Soil Test #3: The Worm Test:

Worms are great indicators of the overall health of your soil, especially in terms of biological activity. If you have earthworms, chances are that you also have all of the beneficial microbes and bacteria that make for healthy soil and strong plants. To do the worm test:

  1. Be sure the soil has warmed to at least 55 degrees (about 12 degrees Celsius), and that it is at least somewhat moist, but not soaking wet.
  2. Dig a hole one foot across and one foot deep. Place the soil on a tarp or piece of cardboard.
  3. Sift through the soil with your hands as you place it back into the hole, counting the earthworms as you go.
  4. If you find at least ten worms, your soil is in pretty good shape. Less than that indicates that there may not be enough organic matter in your soil to support a healthy worm population, or that your soil is too acidic or alkaline.
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