Lawn Care Myths: What’s True and What’s Not

Myth #1: Cutting Grass Shorter Helps It Grow Better

Many homeowners assume mowing grass extra short means they’ll have to mow less often. Unfortunately, cutting grass too low is bad and will stress the lawn.

Reality

Scalping weakens the entire grass plant, making it harder for roots to grow deep and healthy. Short grass is also more vulnerable to heat, drought and weed growth.

What to Do Instead

Follow the one-third rule: never remove more than one-third of the grass blade at a time. Maintaining the proper grass height can help shade the soil, reduce weed growth, support deep roots and improve overall turf grass health.

Myth #2: Watering Every Day Is Best

Daily watering may seem like a good way to keep grass green, especially during spring and summer. But too much shallow watering can actually weaken your lawn.

Reality

Frequent shallow watering encourages shallow grass roots, making lawns more dependent on constant moisture and more vulnerable during dry conditions.

What to Do Instead

Water deeply and less often to help encourage deeper root growth and stronger turf. Watering needs can also vary depending on your grass type. For example, warm-season grasses and cool-season grasses often respond differently to heat and drought.

Myth #3: More Fertilizer Means a Healthier Lawn

When lawns start looking thin or faded, many homeowners assume more fertilizer is the solution, but more isn’t always better.

Reality

Too much lawn fertilizer can stress grass, damage grass roots and disrupt soil balance. Excess fertilization can even contribute to lawn disease and uneven growth.

What to Do Instead

Healthy lawns usually benefit more from balanced lawn fertilization than excessive applications. Apply fertilizer based on seasonal lawn needs, soil conditions and your grass type rather than simply adding more product.

Myth #4: Lawn Mowing Can’t Spread Weeds

Weeds can spread more easily than many homeowners realize.

Reality

Weed seeds can travel through mowing equipment and spread across a lawn if problems aren’t addressed early.

What to Do Instead

Keep mower blades clean and stay proactive with weed control before weeds spread into larger areas of turf.

Myth #5: All Lawn Care Services Are the Same

Not every lawn care service takes the same approach to lawn health.

Reality

Some companies focus mainly on basic maintenance, while others provide more customized lawn care plans based on soil conditions, grass type and seasonal needs.

What to Do Instead

Look for lawn care professionals like TruGreen who offer ongoing monitoring, customized recommendations and treatment plans designed for your lawn rather than one-size-fits-all applications.

Myth #6: Grass Clippings Cause Thatch

This is one of the oldest lawn care myths still floating around.

Reality

Grass clippings break down quickly and will actually return nutrients and organic matter back into the soil. Thatch is usually caused by excess buildup of dead and living plant parts below the grass blades — not by regular grass clippings left after mowing.

What to Do Instead

In most cases, it’s perfectly fine to leave grass clippings on the lawn unless they’re excessively heavy or clumped together.

Myth #7: You Only Need Lawn Care in Summer

Many homeowners only focus on lawn care once the weather warms up in spring.

Reality

Lawn health depends on consistent care throughout the year, not just during peak growing season. Spring fertilization, lawn aeration in late summer or fall, overseeding with grass seed based on your grass type and seasonal weed control all play a role in supporting a healthier lawn long term.

What to Do Instead

Think about lawn care as an ongoing seasonal process instead of a one-time fix.

Myth #8: DIY Lawn Care Is Always Cheaper

DIY lawn care can absolutely work for some homeowners, especially when supported by reliable information and consistent lawn care practices. But mistakes can become expensive quickly.

Reality

Incorrect mowing, overwatering, poor fertilizer timing or untreated lawn disease or insect damage can lead to costly lawn problems later on.

What to Do Instead

Use reliable lawn care guidance, pay attention to seasonal needs and consider professional support if your lawn requires more consistent care.  

Healthy lawns usually come down to a few consistent lawn care habits practiced over time.

• Mow Properly: Avoid cutting grass too short and maintain the right mowing height for your grass type and growing conditions.
• Water Smart: Deep, infrequent watering is typically more effective than shallow daily watering.
• Fertilize Carefully: Apply lawn fertilizer based on seasonal needs, soil conditions and the specific needs of your lawn.
• Stay Ahead of Weeds: Early weed control and prevention can help stop larger lawn problems before they spread.
• Support Long-Term Growth: Overseeding with quality grass seed can help improve lawn density and fill in thinner areas over time. 

Healthy lawns usually aren’t the result of one quick fix or one perfect product. They come from consistent care, smart lawn care practices and understanding what your grass actually needs to thrive.

The good news? Once you move past common lawn care myths, it becomes much easier to make decisions that support stronger turf, healthier roots and greener grass over time.

Whether you’re handling DIY lawn care yourself or looking for more professional support, the right approach can make a noticeable difference in both the appearance and long-term health of your lawn.

If you want to learn more about why homeowners trust TruGreen for ongoing lawn care support, see why homeowners trust TruGreen.