What Happens to Bermuda and Zoysia Grass After the First Freeze?
If your lawn is Bermuda or zoysia, don't be surprised if it starts looking noticeably browner after temperatures drop below freezing.
These warm-season grasses grow most actively during the warmer months. As daylight hours shorten and temperatures cool in fall, their growth slows and they gradually enter winter dormancy.
A freeze can damage the remaining green leaf tissue, causing the blades to turn tan or brown as the grass continues entering winter dormancy.
You may notice:
- Areas that were still green turning brown over the next several days.
- Some portions of your lawn changing color faster than others.
- Grass that appears dry or lifeless despite being healthy going into winter.
Some Bermuda and zoysia lawns may also develop irregular green-and-brown streaks or swirls after an early frost. Known as tiger striping, this happens when frost affects some areas of the grass more than others. These markings are usually temporary and tend to disappear as additional cold weather brings the lawn into more uniform dormancy.
The important thing to understand is that brown grass doesn't automatically mean dead grass.
Dormancy is a normal seasonal response that helps established Bermuda and zoysia lawns survive winter conditions. Although the visible blades lose their green color, the grass can remain alive and return to active growth when conditions improve in spring.
Will Freezing Temperatures Hurt Tall Fescue?
Tall fescue responds differently because it's a cool-season grass.
Unlike Bermuda and zoysia, tall fescue grows well during the cooler months and can maintain its green color throughout much of a North Georgia winter.
An established fescue lawn can generally tolerate the brief freezes typical of our area without significant injury.
However, homeowners who recently seeded their lawns have something else to consider.
Fall is the preferred time for seeding tall fescue in North Metro Atlanta, but grass planted late in the season may not have developed a strong enough root system before freezing temperatures arrive.
Young, recently emerged seedlings are more vulnerable to cold-related stress than established turf. The extent of any injury depends on how well the grass has established and how severe or prolonged the cold becomes.
If your fescue was seeded recently, pay attention to how those young areas respond once temperatures rise again.
Does the First Freeze Mean Your Lawn Is Damaged?
Not necessarily. In fact, most established Georgia lawns can tolerate the cold spells that normally occur during fall and winter.
The first freeze isn't usually the biggest concern. More serious winter injury is generally associated with prolonged or extreme cold, unfavorable moisture conditions, or grass that hasn't had time to establish.
Another important distinction is that cold damage isn't always immediately visible.
For Bermuda and zoysia, it can be difficult to distinguish winter injury from normal dormancy while the grass is brown. In some cases, damage only becomes apparent during spring green-up, when affected areas fail to resume growth.
That's why it's usually too early to judge the health of your warm-season lawn based on how it looks following a fall freeze.
What to Expect When Temperatures Warm Up
North Georgia's fall weather can change quickly. A freezing night may be followed by an afternoon with temperatures back in the 60s or 70s.
But warmer weather doesn't necessarily mean your lawn will turn green again.
For Bermuda and zoysia, seasonal dormancy is influenced by more than one cold night. Shorter days and declining soil temperatures also play a role, so your grass may remain brown even when daytime temperatures temporarily rise.
Tall fescue, on the other hand, may continue to look green and grow when conditions are favorable during the cooler season.
If you're seeing uneven color changes, it's also worth remembering that areas of the same lawn can respond differently depending on sunlight, moisture, and exposure.
The best approach is to recognize which changes are typical for your grass type and which might indicate a problem that needs attention.
Not sure whether your lawn's changing appearance is normal? At got lawn? Tree & Turf Care, we help homeowners understand what's happening with their grass and provide lawn care programs designed around local growing conditions.
Should You Do Anything Before the Freeze?
For most established lawns, there's no need to rush into additional treatments simply because freezing temperatures are approaching.
Avoid walking across frost-covered grass, since traffic can damage frozen leaf tissue. Also, resist the temptation to fertilize warm-season grass to encourage new growth ahead of colder weather.
If you're concerned about preparing your lawn or landscaping for freezing conditions, our earlier guide, Freezing Temperatures Ahead: How To Prepare Your Lawn, offers additional information.
Remember that lawn care needs change with the seasons. A dormant Bermuda lawn doesn't have the same requirements as tall fescue, and neither should be treated as though it's still summer.
Keep Your North Metro Atlanta Lawn on Track Through Winter
The first widespread freeze may change the appearance of your lawn, but that doesn't mean lawn care should stop until spring.
Even when Bermuda and zoysia are dormant, winter weeds can develop, and seasonal treatments still play a role in maintaining healthy turf. Tall fescue follows a different growing schedule and requires care appropriate for the cooler months.
At got lawn? At Tree & Turf Care, we provide year-round lawn care tailored to the grass types and growing conditions found across North Metro Atlanta.
Whether you're concerned about changes in your lawn or looking for ongoing professional care, we're here to help.
Contact got lawn? Tree & Turf Care today to request a free quote.
