A tan lawn in December is normal. Bermuda grass in winter goes dormant: the blades lose their green color after frost, while the crowns, rhizomes, and stolons stay alive below the surface and wait for warm soil.
So the real winter question isn’t how to keep bermuda green. It’s how to avoid the few mistakes that hurt it while it’s dormant, and how to spot the rare case where cold kills part of the lawn.
Quick Answer: Bermuda grass goes dormant and turns tan after the first hard frost and stays that way until soil warms in spring. TruGreen and NG Turf put green-up at soil temperatures above 65°F, usually late March to early May depending on region. While it’s dormant, don’t fertilize, keep foot traffic light, clear leaves, and water only during long dry spells. The only way to have a green lawn in winter is overseeding with ryegrass, which Clemson Cooperative Extension says isn’t generally recommended for home lawns.
What Happens to Bermuda Grass in Winter?
Bermudagrass is a warm-season grass that grows hardest in summer heat. As days shorten and soil cools in fall, growth slows, the leaves stop producing chlorophyll, and the first hard frost turns the lawn straw-colored.
Underneath, the plant is fine. Energy is stored in the crowns, rhizomes, and stolons, which are the parts that push new leaves in spring. Dormancy is how bermuda gets through cold weather without spending energy it can’t replace.
Some lawns stay partly green into December. Sunny spots near pavement or south-facing walls hold heat, so patchy color in early winter isn’t a problem either.
When Does Bermuda Grass Go Dormant?
Usually in November across much of the South, a bit earlier in the upper South and transition zone, and later or barely at all along the Gulf Coast. TruGreen says to expect brown bermuda from about November to February, shifting with weather and region.
The trigger is cooling soil plus frost, not a calendar date. Sources put the slowdown in different places. Twin City Seed says bermuda goes dormant when temperatures fall below 50°F. In practice, you’ll see growth slow through October and the color go after the first frost.
When Does Bermuda Grass Turn Green Again?
| Signal | What to expect |
|---|---|
| Soil temperature | Green-up starts once soil stays above 65°F (TruGreen, NG Turf) |
| Night temperatures | Consistently near 60°F (TruGreen) |
| Deep South | Late March to early April (NG Turf) |
| Upper South | Mid-April to early May (NG Turf) |
| First green spots | Full sun, south-facing slopes, near pavement |
Green-up is gradual. Expect a few weeks of patchy color before the lawn evens out, and expect it later if you overseeded with ryegrass, since the ryegrass shades and competes with the bermuda as it wakes up.
Will Bermuda Grass Come Back After Winter?
Almost always, yes. A dormant lawn comes back on its own once soil warms.
Winterkill: Which Lawns Are at Risk
The exception is winterkill. Purdue University turf scientists say bermuda winterkill depends mostly on three things: moisture, how low the temperature drops, and how long it stays there. Cold, dry stretches with lows near zero and no snow cover do the most damage. So does a late cold snap after bermuda has started greening up.
Purdue lists the lawns most at risk:
- Wet or compacted soils
- Lawns overseeded with perennial ryegrass
- Bermuda that was seeded, sprigged, or sodded the previous summer
- Areas along the edge of shade
- High-traffic areas worn down to bare soil
TruGreen adds a rough rule: if winter lows regularly drop below 10°F, expect winter injury and consider a cool-season grass instead. That’s why bermuda gets risky in the upper transition zone.
How to Tell Dormant From Dead
Wait until your neighbors’ bermuda is clearly greening. Then check the brown areas. Dig up a small plug: live crowns and stolons are firm and white or green inside when you scrape them. Dead ones are mushy, dry, or hollow and pull apart easily.
If part of the lawn did die, don’t panic. Purdue notes bermuda recovers fast, and live plants spaced 6 to 8 inches apart may fill in completely by July or August with good feeding.
Bermuda Grass in Winter: What to Do (and Skip)
Most winter care is restraint. Here’s what NC State Extension recommends in its bermudagrass calendar, plus a few points from the other sources.
Fertilizing: Stop Nitrogen Before Frost, Then Wait
NC State says to apply no more than 1/2 pound of nitrogen per 1,000 square feet in September, or about four weeks before the first expected frost, and to use a low-nitrogen, high-potassium product like 5-10-30. Its other option is 1 pound of potash per 1,000 square feet four to six weeks before frost. That fall timing also helps reduce spring dead spot.
From December through February: no fertilizer at all. Nitrogen on dormant bermuda doesn’t green it up. It feeds winter weeds or washes away.
Watering Dormant Bermuda
Dormant bermuda needs little water, but it can dry out. NC State says irrigation usually isn’t necessary but the soil shouldn’t get powder-dry. The lawn-care sources give a range: TruGreen suggests about 1 inch every four weeks without rain, NG Turf about 1 inch every two weeks during low rainfall. Water on a mild day, so it soaks in before any freeze. Our guide to watering your lawn in winter covers timing.
Mowing and Leaves
Should you cut bermuda short for winter? Not if you’re letting it go dormant. NC State says to raise the mowing height by 1/2 inch in fall on lawns that won’t be overseeded, for extra protection against winterkill: early to mid-September in the mountains, mid to late September in the piedmont, and late September to mid-October on the coast. See how short to cut grass before winter for other grass types.
In winter, NC State’s only mowing job is clearing leaves, which it says leads to earlier, more even spring green-up. A thick leaf mat also traps moisture against the dormant turf.
Traffic
Dormant grass can’t repair itself until spring. Keep heavy foot traffic, parked cars, and trailers off it, especially when the ground is frozen or soggy. Purdue’s list of winterkill risk factors includes traffic that wears the lawn down to bare soil.
Winter Weeds
Dormant bermuda makes winter weeds easy to see. NC State recommends broadleaf herbicides for chickweed and henbit, and notes atrazine or simazine can be applied in November or December for annual bluegrass (Poa annua). Pre-emergent for summer weeds goes down from mid-February to early March. Always check that the label lists bermudagrass.
What Not to Do in Winter
- Don’t dethatch or power rake. NC State says to vertical mow only after the lawn has fully greened up, usually late May.
- Don’t fertilize to “wake it up.”
- Don’t scalp it in late winter. Wait for green-up, then make the first low cut.
How Do You Keep Bermuda Grass Green in the Winter?
You can’t keep the bermuda itself green once frost hits. The only option is overseeding with ryegrass, which grows through winter while the bermuda sleeps underneath.
How to Overseed Bermuda With Ryegrass
Clemson Cooperative Extension is blunt: overseeding home lawns isn’t generally recommended, and if you do it, it should only be on bermudagrass. Its guidance:
- When: about 30 days before the first frost, when daytime highs are near 70°F and nights stay above 50°F. In South Carolina that’s early October in the Upstate and late October on the coast.
- How much: 5 pounds of ryegrass per 1,000 square feet on an established lawn. Seed companies often list 12 to 15 pounds, but Clemson says the lighter rate gives green cover without spring transition problems from a thick ryegrass stand.
- Which ryegrass: perennial ryegrass looks better, but it can hang on into summer. Annual ryegrass is cheaper and dies out faster.
- Spring: stop fertilizing the ryegrass by mid to late January, then mow it down to 1 inch in spring to help the bermuda take back over.
There’s also a trade-off with weed control. TruGreen points out you can’t apply a fall pre-emergent if you’re overseeding, so winter weeds get a free pass. And remember Purdue’s list: ryegrass overseeding raises winterkill risk.
Our guide on when to plant winter rye grass covers timing by region. If you’d rather hand overseeding or spring repair to a pro, LawnGuru’s seeding service averages $829, with most jobs between $378 and $1,280.
Spring Dead Spot: The Winter Problem You See in April
Some damage blamed on cold is a disease. NC State describes spring dead spot as circular patches of tan or brown, sunken turf, 2 inches to 3 feet across, that show up as bermuda breaks dormancy, usually on lawns three to five years old.
The fix is spread across the year. NC State recommends monthly nitrogen from mid-May to mid-August to help the patches fill in, mapping the spots, and treating them with a fungicide in fall when soil is between 60 and 80°F. Core aeration and thatch control help prevent it. Avoiding heavy late-season nitrogen is part of prevention too.
Getting Bermuda Off to a Good Start in Spring
Once green-up begins, NC State’s spring steps are simple. Make the first mowing as low as you can without scalping, before the grass passes 2 1/2 inches, to clear out dead tissue. Then wait until the lawn is fully green and fertilize several weeks later, typically early April to May. Our warm-season lawn care schedule lays out the rest of the year.
What Is the Downside of Bermuda Grass?
Winter browning is the obvious one. Clemson adds that bermudagrass has poor shade tolerance, spreads aggressively into flower beds by stolons and rhizomes, and builds thatch quickly. Cold tolerance varies by variety. Clemson names Riviera, Yukon, and the Midiron family as cold-hardy picks, and flags first-year cold tolerance as a concern for seeded types. Most fine-textured hybrid bermudagrass (Tifway, TifTuf) goes in as sod or sprigs, while common bermudagrass can be seeded, per NC State.
Frequently Asked Questions
Is my bermuda grass dead or dormant?
Probably dormant if the whole lawn turned tan evenly after frost. Check in spring once other lawns green up: live crowns are firm and pale inside, dead ones are mushy or hollow.
Should I cut my bermudagrass short for winter?
No, unless you’re overseeding. NC State recommends raising the height about 1/2 inch in fall for lawns going dormant. Scalp short only right before overseeding, or after green-up in spring.
How do I make my bermudagrass thick and green?
That happens in the growing season, not winter. Feed after full green-up, mow often at a consistent low height, water about 1 inch a week during growth (NC State), and dethatch in late spring if thatch is over 1/2 inch.
Should I water bermuda grass in winter?
Only during long dry spells. About 1 inch every two to four weeks without rain is the common range, applied on a mild day.
Can I fertilize dormant bermuda grass?
No. NC State says not to fertilize from December through February. Wait until the lawn is fully green in spring.
Does frost kill bermuda grass?
Frost turns it brown, but normal frost doesn’t kill it. Winterkill comes from long, hard freezes, especially on wet soil, new lawns, shaded edges, or worn areas.
When does bermuda grass come out of dormancy?
When soil stays above about 65°F. That’s usually late March to early April in the Deep South and mid-April to early May in the upper South.
