How to Treat Snow Mold on Your Grass

snow mold Snow mold occurs when your lawn receives a heavy snowfall before the ground has had a chance to freeze.  This allows moisture to get trapped and provides the ideal environment for snow mold to grow. Of the two types of snow mold, pink and gray, pink is the more damaging and can kill the grass roots as well as its crown where the roots and shoots meet.  Gray mold, on the other hand, typically only damages the blades of the grass. In this article we’ll go over various ways of how to treat snow mold on your grass.


Treating Existing Snow Mold


If spring has sprung and you’ve found circular patches of snow mold on your grass, it’s obviously too late to employ preventative measures.  The best thing you can do is allow the area to dry out thoroughly. This can be done by removing any layers of ground cover such as decaying leaves or other debris.  Give the area a good raking to unsettle the mold and allow the area to dry as much as possible.


Preventing Snow Mold


Tackling snow mold is best done by taking preventative measures.  You can do this by making sure to mow your lawn before the first snow flies.  Trimming the length to about an inch in height will ensure the grass blades won’t get crushed by a snowfall and encourage moisture and snow mold growth.  


If you’re regularly finding snow mold each spring, you might consider applying a coating of fungicide in the fall to help prevent mold growth over the winter months.  You should also be careful about applying too much nitrogenous fertilizer as this will only help the mold to take root.


When the snow does fall, especially if it’s an early snowfall without much cold weather beforehand, don’t let it build up on your lawn.  When you’re shoveling snow off your sidewalks and driveway, try to avoid piling snow on to problem areas of your lawn. Once spring comes, consider spreading the snow around on your lawn to allow it to melt and soak away or evaporate quickly.