Snow Mold Prevention and Care: Keeping Your Iowa Lawn Healthy

December 8, 2023

In 1976 All American Turf Beauty was the first company in Iowa to offer programmed lawn care. The company founders literally invented and developed the industry in Iowa. Get a beautiful weed-free lawn with our professional lawn care services!

In Iowa, where winters are as beautiful as they are harsh, snow mold is a common post-winter problem for many homeowners. This fungal disease can turn a once vibrant lawn into a patchy, discolored mess as the snow melts. Understanding snow mold’s causes, prevention, and treatment is key to maintaining a healthy, robust lawn year-round. 

What is Snow Mold? 

Img01--What is Snow Mold

Snow mold is a fungal disease that predominantly affects cool-season grasses under snow cover. There are two types of snow mold: gray (Typhula blight) and pink (Microdochium nival), both named for the color of the mold spores. These fungi thrive in the cold, wet environment beneath snow. Symptoms typically include circular patches of dead or dying grass that are pinkish or grayish in color, often appearing as the snow recedes. 

Prevention Strategies

Img02--Prevention Strategies Snow Mold

1. Fall Lawn Maintenance

A well-maintained lawn in the fall is less susceptible to snow mold. Continue to mow your lawn until it stops growing and keep the grass at an ideal 2 to 3 inches in height to prevent matting.

2. Debris Management

Leaves, grass clippings, and sticks can trap moisture and provide a breeding ground for fungi. Regularly removing lawn debris, especially before the first snowfall, is crucial.

3. Fertilization Timing

Avoid applying nitrogen-rich fertilizers late in the fall. These can promote lush growth, which is more vulnerable to snow mold. Opt for a balanced fertilizer and finish your lawn feeding well before the cold sets in.

4. Lawn Aeration

Compacted soil can lead to poor drainage and create conditions ripe for mold growth. Aerating your lawn in the fall can improve oxygen circulation and drainage, making it harder for snow mold to take hold. 

During the Winter Minimizing Snow Accumulation 

Img03--During the Winter Snow Mold

Snow piles, especially those that are large and dense, can create conditions that encourage mold growth. Try to spread snow evenly when shoveling or plowing and avoid piling it onto your lawn. 

Identifying and Treating Snow Mold 

Img04--Identifying and Treating Snow Mold

As the snow melts in early spring, be on the lookout for the telltale signs of snow mold. Here’s how to deal with an infestation:

1. Light Raking

Once the area is dry, gently rake the affected areas to break up the matted grass and promote air circulation. This can help grass recover and prevent the mold from spreading.

2. Fungicide Application

For persistent problems, or as a preventive measure in areas previously affected, consider applying a fungicide. Choose a product specifically labeled for snow mold and apply according to the manufacturer’s instructions.

3. Overseeding Damaged Areas

In cases of severe damage, overseeding may be necessary. Spring is an ideal time for seeding cool-season grasses in Iowa. Choose a resilient variety known for disease resistance. 

Additional Tips for a Healthy Lawn

Img05--Additional Tips

1. Monitor Moisture

Ensure your lawn has proper drainage. Prolonged moisture can exacerbate mold issues, so addressing any drainage problems is key.

2. Choose the Right Grass

Some grass types are more resistant to snow mold than others. Consult with a local horticulturist or extension service to choose the best grass for your area.

3. Stay Informed

Weather conditions can be unpredictable. Stay informed about local weather patterns and prepare your lawn for early snowfalls or late-season cold snaps. 



While snow mold can be a nuisance, understanding its lifecycle, prevention methods, and treatments can significantly reduce its impact on your lawn. With proper care and maintenance, you can ensure that your Iowa lawn remains healthy and beautiful, even after the harshest winters. As always, consider consulting with a lawn care professional for personalized advice and treatment options. 

For expert lawn care services and personalized advice, contact All American Turf Beauty at (515) 996-2261. Our team is ready to help you protect and beautify your lawn no matter the season! 

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Our services are guaranteed!

If you are not completely satisfied with an All American Turf Beauty application to your lawn, we will re-apply the application at no additional cost and continue the regular lawn treatment program. Alternately, we will fully refund your cost for the application and cancel any further obligation on your part.

To qualify for the guarantee, you must call All American Turf Beauty within 30 days of application.

Our goal at All American Turf Beauty, Inc. is a simple one:

To provide you with the highest quality products and methods available.

We offer every kind of service that it takes to develop and maintain a beautiful lawn in Iowa based on the climate, soil types, and the varieties of grass that are commonly grown here.

One of the keys to the success of the program is that we provide treatment to lawns approximately every 8 weeks throughout the growing season. This ensures that the grass has fertilizer (food) available throughout the growing season. Dandelions and other Broadleaf weeds are controlled as they germinate thus enabling a weed free lawn, and our Turf Specialist is at the property four to six times per season to address problems as and when they arise.

Another key to our service is our people. The most important person to you in our company is the Turf Specialist assigned to treat your lawn.

We are proud to say that our Turf Specialists are the best trained and most experienced in the lawn care industry.

When you become a customer at All American Turf Beauty, a Turf Specialist is assigned to your account. You will have the same person treating your lawn each time. It is their responsibility to service your lawn, make sure it is receiving the correct applications as scheduled, and to provide you with the best personalized service possible. Their jobs depend on it.

We have several programs to choose from. Your Turf Specialist will recommend the best program that fits the needs of your lawn and your budget.


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