Lawn Care Guide for Tangipahoa Parish
Tangipahoa Parish, Louisiana
Data Story
About Lawn Care in Tangipahoa Parish, Louisiana
Tangipahoa's tough lawn environment
Ranking at a difficulty score of 21.1, Tangipahoa is among the most challenging parishes for lawn enthusiasts. This Zone 9a area requires specific interventions to match the success of easier regions.
Stifling heat and heavy rain
The parish endures 90 extreme heat days per year, surpassing the Louisiana average of 84. This heat combines with 63.6 inches of rain, often creating a humid environment that invites fungal turf diseases.
Acidic soil with high sand
With a pH of 5.09 and 37.2% sand content, nutrients often wash through the soil profile before grass can use them. Regular soil testing and slow-release fertilizers are vital for maintaining lawn health here.
Current conditions are mostly stable
While the parish saw 17 weeks of drought last year, currently only 15.5% of the area is abnormally dry. Maintain a mowing height of 3 inches or more to shade the soil and reduce evaporation during sunny weeks.
Prepare for a March start
Bermuda grass is resilient against the 90 days of extreme heat common in this region. Wait until the threat of frost passes around March 8 before laying new sod or seeding.
Lawn Difficulty Score
Recommended Grasses
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
63.6"
Growing Degree Days
6,452.3
Base 50F
Last Spring Frost
03/08
First Fall Frost
11/19
Days Above 95F
90
Hardiness Zone
9a
Seeding Calendar — Zone 9A
Seasonal Lawn Care Checklist
Spring
- Apply pre-emergent herbicide when soil reaches 55F
- Begin mowing when grass reaches 3 inches
- Start irrigation if rainfall is below 1 inch/week
- Soil test every 2-3 years — adjust lime or sulfur as needed
Summer
- Raise mowing height to reduce heat stress
- Water deeply 1-2 times per week (1 inch total)
- Avoid fertilizing cool-season grasses in peak heat
- Scout for grubs and treat if >10 per sq ft
Fall
- Overseed warm-season lawns if thinning
- Apply fall fertilizer (highest N application for cool-season)
- Continue mowing until growth stops
- Rake or mulch leaves to prevent smothering
Winter
- Apply pre-emergent for winter weeds
- Service mower and sharpen blades
- Plan spring soil amendments based on fall test
- Overseed with ryegrass for winter color
Watering Deficit Calculator
Monthly Deficit
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 64" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Tangipahoa Parish
Excess Moisture & Fungal Disease
High annual rainfall (64 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
Acidic Soil
Soil pH of 5.1 is below the ideal range for most grasses (6.0-7.0). Apply agricultural lime to raise pH gradually.
Learn more about regional lawn challenges at The Lawn Report.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Data sourced from USDA SSURGO, NOAA Climate Normals (1991-2020), USDA Plant Hardiness Zone Map, and US Drought Monitor. Lawn difficulty scores and grass recommendations are estimates for informational purposes only.
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