Plant
Wait for sustained soil heat
Warm-season lawns in Louisiana need late-spring soil warmth before seed has enough energy to germinate and spread.
LA planting calendar
When to Plant Grass Seed in Louisiana
Use this page for timing first. It starts with the planting window, then breaks the year into practical seedbed, watering, and weather decisions for Louisiana lawns.
- Best window
- Late March through May for warm-season grasses when soil is consistently above 65F
- Soil rule
- Warm soil first, 65F+ soil
- USDA zones
- 8, 9
- Regional focus
- Greater New Orleans / Southeast Louisiana and Baton Rouge / Capital Region
How to use this calendar
Start with seed type, then trust the soil
State timing is useful because frost, rainfall, soil texture, and heat stress change the risk profile. It is still a filter, not a guarantee. Confirm the grass species, soil temperature, and watering plan before you spread seed.
Local constraints
- Extreme humidity promotes constant fungal pressure
- Heavy rainfall and poor drainage
- Fire ants throughout the state
- Tropical storm and hurricane damage
- Chinch bugs in bermuda
- Year-round weed pressure
Avoid
Do not chase early green-up
Warm afternoons can arrive before soil is ready. Early seed often stalls, thins, or loses to weeds.
Seasonal plan
Season-by-season planting plan for Louisiana
Use the Louisiana calendar as a timing sequence: prep before the window, seed when soil temperature is right, and protect new turf through the first stress season.
Best window
Late March through May for warm-season grasses when soil is consistently above 65F
Warm-season
Warm soil first
65F+ soil
March - May
Spring
- 1Apply pre-emergent herbicide when soil temperatures reach 55 degrees at 4-inch depth — in South Louisiana (New Orleans, Lafayette, Lake Charles) that's typically mid-to-late February, in Baton Rouge early March, and in Shreveport mid-March
- 2Scalp bermuda lawns to 0.5 to 0.75 inches once 50% green-up is visible — in South Louisiana that's usually early-to-mid March, in Baton Rouge mid-March, and in Shreveport early April
- 3Submit a soil test through your parish LSU AgCenter extension office — Louisiana soils vary wildly from alluvial to clay to sandy to saline, and guessing at lime and fertilizer rates is a recipe for wasted money
- 4Apply the first round of fire ant bait (broadcast application) across the entire yard in late April when soil temperatures are above 65 degrees and ants are actively foraging
- 5Seed bermuda, centipede, or zoysia once soil temperatures hold above 65 degrees for two weeks — late March in South Louisiana, mid-April in Baton Rouge, late April in Shreveport
- 6Begin regular mowing as warm-season grass starts active growth — bermuda at 1 to 1.5 inches, centipede at 1.5 to 2 inches, zoysia at 1 to 2 inches
June - August
Summer
- 1Apply a balanced fertilizer (16-4-8 or 15-0-15 for centipede) in early June — bermuda gets a second application in early August, centipede gets nothing more after June
- 2Water only in the early morning (before 9 AM) and only when the lawn shows drought stress — Louisiana's 60+ inches of annual rain often makes supplemental irrigation unnecessary, but summer dry spells do happen
- 3Scout for chinch bugs in St. Augustine and bermuda lawns during hot, dry stretches — look for irregular yellow patches that expand outward, especially along driveways and sidewalks where heat radiates
- 4Monitor for gray leaf spot in St. Augustine and large patch in zoysia during prolonged humid stretches — Louisiana's humidity creates perfect fungal conditions from June through October
- 5Sharpen mower blades monthly — dull blades tear grass tissue and create entry points for fungal diseases in Louisiana's relentlessly humid air
- 6Clear storm debris promptly after tropical storms and hurricanes — grass under tarps, branches, or debris for more than 48 hours in summer heat will die
September - November
Fall
- 1Apply a fall pre-emergent in mid-September to catch winter annual weeds like annual bluegrass (Poa annua), henbit, and chickweed before they germinate in cooling soil
- 2Broadcast fire ant bait for the second time in September — fall foraging activity makes this application as important as the spring round
- 3Core aerate bermuda and zoysia lawns in September while grass is still actively growing — this is critical for North Louisiana clay soils and any compacted subdivision lot statewide
- 4Apply a winterizer fertilizer with high potassium (like 5-5-25) in mid-October for bermuda and zoysia — potassium strengthens cell walls and improves cold tolerance for the brief Louisiana winter
- 5Apply preventive fungicide for large patch on zoysia lawns in late September — the disease activates when nighttime temperatures drop into the 60s and 70s with high humidity, which is October in Louisiana
- 6Continue mowing until the grass stops growing — in South Louisiana, bermuda may stay semi-active into December in mild years
December - February
Winter
- 1Leave dormant warm-season grass alone — no fertilizer, no heavy herbicide applications, and minimize foot traffic on frozen or frost-covered turf
- 2Spot-treat actively growing winter weeds like henbit, chickweed, and annual bluegrass with a post-emergent herbicide while the lawn is dormant and the weeds are exposed and vulnerable
- 3Plan drainage improvements — January and February are ideal for installing French drains, regrading low spots, and repairing catch basins before spring growth begins
- 4Service your mower, sharpen blades, and replace the air filter — Louisiana's humid, pollen-heavy air clogs filters and corrodes equipment faster than in drier climates
- 5Order grass seed by late January — improved bermuda and centipede varieties sell out as spring approaches, and Louisiana garden centers begin stocking seed by mid-February
- 6In South Louisiana, watch for early green-up of bermuda in February during warm stretches — this premature growth is vulnerable to late freezes, so resist the urge to fertilize until consistent green-up is confirmed
Regional timing notes
Louisiana is not one planting zone
Use these regional notes to adjust the statewide window for elevation, soil, heat, irrigation pressure, and local grass type.
Greater New Orleans / Southeast Louisiana
The New Orleans metro — from Slidell and Covington on the Northshore through Metairie, Kenner, and the West Bank to the river parishes of St. Charles and St. John — sits at or near sea level in Zone 9a, making it one of the warmest urban areas in the continental U.S. The soil ranges from rich Mississippi River alluvial deposits in the river parishes to heavy clay in Metairie and Kenner, to sandy loam on the Northshore in St. Tammany Parish. Drainage is the defining challenge: the metro's flat topography, high water table, and intense rainfall (65+ inches annually) mean standing water is a constant battle. Subsidence in many neighborhoods means yards that were graded properly at construction now pool water in low spots. Bermuda dominates sun-exposed lots across Jefferson and St. Tammany parishes, but the massive live oak canopy throughout uptown New Orleans, Old Metairie, and the older Northshore neighborhoods creates deep shade where only zoysia or St. Augustine (sod only) can survive. Salt intrusion from storm surge is a real concern for properties in lower Plaquemines and St. Bernard parishes.
- Drainage must come first in the New Orleans metro — install French drains or channel drains before planting anything, because grass roots sitting in standing water for 24 hours after a typical summer downpour will rot regardless of species
- Under the massive live oaks in Uptown, Old Metairie, and Lakeview, Zenith zoysia is your best seeded option — bermuda cannot handle the 70% shade these ancient trees create
Baton Rouge / Capital Region
The Baton Rouge metro — including Denham Springs, Gonzales, Prairieville, Central, and Zachary — straddles the boundary between Mississippi River alluvial soil to the west and the sandy loam and clay soils of the Florida Parishes to the east. Zone 8b to 9a conditions deliver brutal summers (heat index regularly exceeds 110 degrees in July and August) and mild winters where bermuda dormancy lasts only 8 to 12 weeks. The catastrophic flooding of August 2016 reshaped lawn care thinking across the metro — thousands of homeowners had to re-establish entire lawns after weeks of standing floodwater, and the experience drove home the importance of drainage infrastructure and flood-resilient grass choices. LSU's campus itself is a showcase of warm-season turf management, and the LSU AgCenter's research station in the city provides Louisiana-specific variety trials that inform every recommendation. Bermuda is the overwhelming favorite across newer subdivisions in Prairieville, Central, and Gonzales, while centipede holds its ground in established neighborhoods and larger lots throughout East Baton Rouge Parish.
- The 2016 flood taught Baton Rouge homeowners a hard lesson — bermuda recovers from flooding faster than any other warm-season grass, making it the safest choice in flood-prone areas of Denham Springs, Central, and the Amite River corridor
- LSU AgCenter soil testing is available through your parish extension office — the lab in Baton Rouge processes thousands of Louisiana samples annually and their lime and fertilizer recommendations are calibrated for local soil types
North Louisiana / Shreveport-Monroe
North Louisiana — centered on Shreveport-Bossier City in the west and Monroe-West Monroe in the east — is a different climate from the southern parishes. Zone 8a to 8b conditions deliver genuine winters with hard freezes, occasional ice storms, and bermuda dormancy lasting 3 to 4 months. The soil is predominantly heavy Susquehanna series red clay in the Shreveport area and Ruston sandy loam around Monroe, both significantly different from the alluvial soils downstate. Shreveport averages 51 inches of rain annually — still substantial but noticeably less than the 60+ inches in Baton Rouge and New Orleans. The region has more in common with East Texas and South Arkansas than with South Louisiana in terms of grass selection and timing. Bermuda is still the primary lawn grass, but the longer dormancy period and harder winters mean cold-hardy varieties matter more here than anywhere else in the state. Centipede is common on larger lots throughout the ArkLaTex region, appreciated for its low maintenance in an area where many homeowners have acreage rather than quarter-acre subdivision lots.
- Shreveport's heavy red clay compacts severely under summer heat — core aerate twice annually (May and September) and topdress with compost to build organic matter over the clay
- Pre-emergent timing in North Louisiana runs 2 to 3 weeks behind New Orleans — wait until early to mid-March when redbuds bloom in Shreveport before applying
Acadiana / Lafayette-Lake Charles
Acadiana — Lafayette, Lake Charles, Opelousas, New Iberia, and the surrounding parishes — is the cultural and agricultural heart of Cajun country, sitting in Zone 9a with some of the highest rainfall totals in the state. Lake Charles averages 58 inches annually, and Lafayette gets 62. The soil across the region is a mix of coastal prairie clay, alluvial deposits along the Vermilion and Mermentau rivers, and increasingly saline soils as you move south toward the coast in Cameron and Vermilion parishes. The flat terrain and high water table create persistent drainage challenges, particularly in Lafayette's rapidly expanding subdivisions built on former rice fields and crawfish ponds. Hurricane season is a defining factor — the Lake Charles area was devastated by Hurricanes Laura (2020) and Delta (2020) in quick succession, and lawn recovery from wind damage, debris, and saltwater intrusion is a skill every Acadiana homeowner develops. Bermuda is the standard choice across the region, with centipede popular on larger lots and rural properties where the Cajun approach to yard work (do less, enjoy more) aligns perfectly with centipede's low-input nature.
- Former rice field subdivisions in Lafayette and Youngsville have heavy clay subsoil engineered to hold water — you're fighting the original agricultural design, so invest in drainage infrastructure before worrying about grass
- Salt damage from hurricane storm surge can persist in soil for 6 to 12 months — flush affected areas with 4 to 6 inches of clean water over several weeks and apply gypsum at 50 lbs per 1,000 sq ft to displace sodium from the clay
Next decision
Pick seed after the window is real
Once the timing works, move to the Louisiana seed guide for varieties matched to zones, soil, water pressure, and the grass type that fits your lawn.