Lawn Care Guide for St. Landry Parish
St. Landry Parish, Louisiana
Data Story
About Lawn Care in St. Landry Parish, Louisiana
St. Landry faces steep lawn challenges
With a difficulty score of 25.9, St. Landry Parish is significantly tougher to maintain than the 50.0 national average. This Zone 9a region ranks well below the Louisiana state average of 33.8, demanding extra effort from local gardeners.
High heat and heavy rainfall
The parish receives 61.4 inches of rain annually, which exceeds the ideal lawn range of 30-50 inches. Residents must manage 102 extreme heat days per year, a figure much higher than the state average of 84 days.
Managing acidic, clay-heavy soils
A soil pH of 5.91 sits just below the ideal 6.0-7.0 range, necessitating occasional lime applications to reduce acidity. The soil contains 27.2% clay, which can lead to drainage issues during heavy Louisiana downpours.
Extended dry spells test turf
Lawns in St. Landry survived 25 weeks of drought over the past year, and 47.4% of the area currently experiences severe conditions. Homeowners should prioritize deep, infrequent watering to encourage resilient root systems.
Start your Zone 9a lawn early
Heat-tolerant species like St. Augustine or Bermuda grass thrive in this climate. Plan to seed or sod after the last spring frost on February 28 to take full advantage of the long growing season.
Lawn Difficulty Score
Recommended Grasses
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
61.4"
Growing Degree Days
6,862.45
Base 50F
Last Spring Frost
02/28
First Fall Frost
11/27
Days Above 95F
102
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 61" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in St. Landry Parish
Excess Moisture & Fungal Disease
High annual rainfall (61 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
Persistent Drought Conditions
St. Landry Parish experienced drought conditions for 25 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
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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