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How to Treat and Prevent Snow Mold

snow mold in a yard

Snow mold occurs when too much snow stays on the ground for extended periods of time. Here are some tips on how to get rid of it and help prevent it in the future.


What Is Snow Mold, Anyway?

picture of pink snow mold

Snow mold, also known as snow rot, is a lawn disease that thrives under snow or wet leaves during the winter months. It can have a grayish or pinkish color and take on a web-like appearance.  The longer the snow sticks around or the wet leaves are left in place, the more it spreads.


How to Treat Snow Mold

As temperatures start to steadily rise with the approach of spring, snow mold will likely go away on its own. If not, you’ll need to rake the area and reseed any bare spots.

How to Help Prevent Snow Mold

By taking a few simple steps, you can lessen the chances that snow mold will come back.


  1. For that last cut of the season, mow your grass a little shorter than normal as long grass is a favorite of snow mold.
  2. Mulch leaves in the fall to eliminate this additional breeding ground.
  3. Use a low-nitrogen, slow-release lawn food. Nitrogen can promote snow mold growth.


Snow mold occurs more often in areas where snow has accumulated such as along driveways after shoveling. Try to minimize the size of the snow banks you create.

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