Warm-season grass
Carpetgrass Lawn Care Schedule
Carpetgrass on a transition-zone calendar greens up early March to mid-April. Put the spring pre-emergent down mid-March to early April and make the first feeding late April to mid-May once the lawn is fully green. Mow at 1–2 inches through the growing season.
Carpetgrass is a warm-season grass suited to the wet, acidic, sandy soils of the Deep South and Gulf Coast, where its tolerance of poor drainage sets it apart from other lawns. It forms a dense, low, light-green turf with very low fertility needs — but it is coarse, sends up seedheads constantly in summer, and has poor drought and cold tolerance, so it is a practical ground cover for damp problem areas more than a showcase lawn.
- Type
- Warm-season
- Mowing height
- 1–2″
- Nitrogen planning range
- 1–2 lbs N / 1,000 sq ft / yr
- Growth habit
- Spreading (self-repairs)
- Shade tolerance
- Moderate
- Drought tolerance
- Low
- Traffic tolerance
- Low
- USDA zones
- 8–10
Get region-specific timing
Pick your USDA hardiness zone for a Carpetgrass schedule with timing shifted to your local season:
Key care windows
Timing windows are flexible (early / mid / late) and tuned to a typical transition-zone season — soil temperature and your local weather should always have the final say.
Spring green-up & first mow
Timing: early March to mid-April
Warm-season turf begins breaking dormancy as soil temperatures reach about 55°F, but it isn't actively growing until the soil warms to roughly 65°F.
Do not scalp Carpetgrass to bring it out of dormancy. The deep low spring reset is a bermuda and zoysia practice; on Carpetgrass a scalp thins the stand rather than resetting it. Its own recommended height of 1–2″ is where its reserves and its shade and weed tolerance live, whether that number is high or low.
Rake or collect loose matted leaf; mechanical dethatching is a separate treatment requiring species-specific timing and recovery. Mow at the normal height. Follow the one-third rule: never remove more than a third of the blade in one pass.
Don't fertilize until it's about 50% green and actively growing — roughly when soil temperatures hold above ~65°F.
Spring pre-emergent (crabgrass)
Timing: mid-March to early April
Apply a pre-emergent herbicide as soil temperatures climb through the low 50s°F — before they reach the ~55°F at which crabgrass germinates — to stop summer weeds before they start. Whether a second pass is called for, how long after the first, and what the season's total may add up to are all set by the active ingredient and rate on your label, not by a general rule: some products are labeled for a split program and some are a single application for the year. Pick the product first, then read its split-application and maximum-annual-rate directions.
First feeding
Timing: late April to mid-May
Make the first fertilizer application 2–4 weeks after full green-up, once the lawn is actively growing. Very little nitrogen is needed — about 1–2 lbs per 1,000 sq ft per year. Carpetgrass grows on low-fertility soils by nature, and excess nitrogen mostly means more mowing without a better lawn. Use iron rather than extra nitrogen if you want deeper color.
Carpetgrass wants the acidic, low-fertility soil most lawns do not — do not over-lime or over-feed it. Plan each feeding at about 1 lb of nitrogen per 1,000 sq ft or less (a planning default), and reach for iron, not more nitrogen, for color.
Aeration & dethatching
Timing: early May to late June
Core-aerate during active growth to allow recovery; avoid aerating dormant or drought-stressed turf. Before dethatching, measure the layer: over about ½" warrants assessment, not automatic removal. Consider grass type, site conditions and symptoms, and follow local species and equipment guidance. For dethatching, ordinarily wait for full green-up and active growth with recovery time, including on St. Augustine and centipede. Oklahoma offers pre-green-up guidance; do not generalize it nationally. Confirm species, method and recovery conditions locally.
Summer feeding program
Timing: early June to mid-August
Summer is the warm-season growth peak. Very little nitrogen is needed — about 1–2 lbs per 1,000 sq ft per year. Carpetgrass grows on low-fertility soils by nature, and excess nitrogen mostly means more mowing without a better lawn. Use iron rather than extra nitrogen if you want deeper color. Spread the annual budget across the season rather than applying it all at once.
Carpetgrass grows on low-fertility ground by nature and its program finishes in August, so there is no separate autumn feeding here.
Plan about 1 lb of nitrogen per 1,000 sq ft per feeding or less — a conservative default, not a universal limit. This schedule stops nitrogen about 6 weeks before your first expected frost, a conservative margin.
Summer weed & pest watch
Timing: early June to late August
Spot-treat broadleaf weeds during active growth, never on drought-stressed turf. Watch for insect and disease pressure in hot, humid weather and treat problem areas rather than the whole lawn.
Fall soil test
Timing: early September to late October
Fall is the best time to take a soil test: lime or sulfur has the winter to react, and you go into spring with a real pH and fertility picture instead of guesswork. Send it to your state extension lab and tell them which grass you grow — the target pH is species-specific, and a lab that knows you have centipede reports against a different range than one assuming bluegrass.
Fall pre-emergent (winter weeds)
Timing: mid-September to mid-October
A fall pre-emergent applied before soil cools below about 70°F controls winter annual weeds like Poa annua and henbit.
Winter dormancy
Timing: early November to late December
Wherever winter brings frost, expect a brown, dormant lawn from the first frost until spring green-up: hold off on fertilizer and pre-emergent, and give a light watering during extended winter drought to prevent desiccation. In the warmest, nearly frost-free areas (roughly USDA zone 10 — south Florida, coastal Southern California), the lawn often just slows down and stays partly green rather than going fully dormant; keep mowing and watering lightly as needed, and it can still use a little nitrogen or iron for winter color.
Month-by-month schedule
A quick at-a-glance plan for Carpetgrass, month by month.
| Month | Season | What to do |
|---|---|---|
| January | Winter· dormant |
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| February | Winter· dormant |
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| March | Spring |
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| April | Spring |
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| May | Spring |
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| June | Summer |
|
| July | Summer |
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| August | Summer |
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| September | Fall |
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| October | Fall |
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| November | Fall· dormant |
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| December | Winter· dormant |
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See these dates for your exact yard
Your grass type is already filled in — add your ZIP in the free schedule generator for a month-by-month Carpetgrass plan tuned to your local season — no signup required.
Open the schedule generatorWant a heads-up on Carpetgrass's next deadline?
We'll email you about three weeks before this ZIP's normal first freeze — while irrigation contractors still have slots, and before the backflow preventer is the part that freezes.
The blow-out reminder counts back from your metro's NOAA 1991–2020 median first freeze, not this year's forecast — a normal year, give or take a couple of weeks. Add your address and the reminder follows the live forecast for your own yard, with the checklist built around the zones and shut-offs you've mapped.
Carpetgrass care guide
Mowing
Mow carpetgrass at 1–2", and expect to mow often in summer just to keep its fast, tall seedheads down — those seedstalks are its most-complained-about trait. A sharp blade keeps the coarse leaves from shredding.
Watering
Carpetgrass likes moisture and has poor drought tolerance — it is chosen for wet spots for a reason and browns quickly where it dries out. Give it about 1" of water per week in dry weather; it will not thrive on the low irrigation a grass like bahiagrass shrugs off.
Fertilizing
Very little nitrogen is needed — about 1–2 lbs per 1,000 sq ft per year. Carpetgrass grows on low-fertility soils by nature, and excess nitrogen mostly means more mowing without a better lawn. Use iron rather than extra nitrogen if you want deeper color.
Weed control
A dense carpetgrass stand shades out many weeds on its own. Time a spring pre-emergent for crabgrass and use only products labeled for carpetgrass; on the acidic soils it prefers, do not lime to 'fix' it — carpetgrass actually likes the low pH.
Strengths
- Tolerates wet, poorly drained, acidic soils that drown other grasses
- Very low fertilizer needs
- Dense, low growth that crowds out many weeds
Watch out for
- Coarse texture and constant summer seedheads mean frequent mowing
- Poor drought tolerance — browns quickly in dry spells
- Not cold-hardy and slow to green up in spring
Common Carpetgrass lawn problems
Browning, patches, or pests on a carpetgrass lawn? These guides help you diagnose what's actually wrong and what to do about it — safely, before you treat.
- Chinch bugsSpreading brown in the hottest, driest part of the lawn.
- ArmywormsGreen to brown in days — the late-summer caterpillar that eats lawns.
- GrubsSpongy turf that lifts like carpet — and how to confirm it.
- Lawn fungus & diseaseBrown patch, dollar spot, and the conditions that cause them.
- Brown patchesRound, spreading, or random — what brown patches are telling you.
- Dead or dormant?Tell a stressed-but-alive lawn from one that won't come back.
Is it too late for pre-emergent where you are?
"mid-March to early April" above is a long-term window, and the real trigger is soil temperature. Enter your ZIP in the free pre-emergent check to see where your soil sits against the crabgrass threshold right now — no signup required.
Check my pre-emergent windowA starting point — your plan adjusts to your yard
The Carpetgrass schedule on this page is a research-based template for your grass type. Your lawn is one of a kind, though: the right timing and amounts also depend on your soil test, sun and shade, irrigation, lawn size, and the goals you set — a low-input yard, the deepest possible color, or just crowding out weeds. YardLedger takes this template and adjusts it to your yard's specific needs, then keeps refining it from the history of what you've actually done and how the lawn responded — so every recommendation gets more personal over time.
Safety first
Carpetgrass wants the acidic, low-fertility soil most lawns do not — do not over-lime or over-feed it. Plan each feeding at about 1 lb of nitrogen per 1,000 sq ft or less (a planning default), and reach for iron, not more nitrogen, for color.
Local fertilizer rules can be stricter than this and can override it: several states and counties set a lower per-application limit, cap the soluble (quick-release) fraction separately, require a share of slow-release nitrogen, or ban applications outright during a seasonal blackout. Check your state or county rules before you spread.
Most conventional pre-emergents can injure seedlings or prevent establishment. Before seeding treated ground, follow the exact product's reseeding interval for the rate used; waits are often months, not weeks. Before treating newly seeded grass, follow its separate waiting, mowing and establishment requirements. Use a product at seeding only when its label allows your grass species, seed mixture, rate and timing. For crabgrass prevention while seeding cool-season grass, mesotrione products with new-seeding directions are an option only for the existing turf and seed mixture that product lists. Species and timing differ by product, especially for fine fescue; avoid over-application, particularly with perennial ryegrass.
Always read and follow the product label — it is the legal authority on rates, timing, and safety. These windows are regional estimates, not a prescription; defer to the label and your local extension office.
Where this guidance comes from
The university extension and public-agency publications listed here back specific statements on this page. Each publication says which statement it backs, so you can check the statement rather than take it on trust. Where a product label or your local extension office disagrees with anything here, follow the label or the extension office.
- Carolina Lawns: A Guide to Maintaining Quality Turf in the Landscape (AG-69)
NC State Extension
Warm-season grasses are fed while they are actively growing, not in fall or winter — why this schedule's nitrogen runs late spring through summer and stops ahead of dormancy.
- Fertilizing Lawns (HGIC 1201)
Clemson Cooperative Extension
Annual nitrogen is budgeted per grass type, and some warm-season species carry a low yearly figure — the guardrail behind the nitrogen figures on this schedule.
- Crabgrass
University of Minnesota Extension
Spring pre-emergent timing follows soil temperature rather than the calendar, which is why this schedule's pre-emergent window moves with your local soil.
- How to Use the Maps — USDA Plant Hardiness Zone Map
USDA Agricultural Research Service
A hardiness zone is an average of winter lows, not a growing-season map — why your zone narrows this schedule's timing but does not set its dates.
