Lawn Care Guide for Coryell County
Coryell County, Texas
Data Story
About Lawn Care in Coryell County, Texas
Navigating Central Texas Growing Pains
Coryell County holds a lawn difficulty score of 40.8, making it tougher than the national average but easier than the typical Texas county. Situated in Hardiness Zone 8b, lawns here benefit from a longer warm season despite the regional climate challenges.
High Heat and Moderate Moisture
Annual precipitation averages 34.7 inches, just enough to sustain traditional turf without constant irrigation. However, 99 days of extreme heat over 90°F put significant stress on grass blades during the peak summer months.
Balanced Texture with High pH
The soil features a nearly equal split of 30.4% clay and 30.3% sand, providing a stable foundation for root growth. A pH level of 7.30 means the soil is slightly alkaline, requiring careful selection of fertilizers to avoid iron chlorosis.
Consistency is Key During Drought
With 18 weeks of drought recorded in the past year, water conservation remains a top priority for local residents. Mulching lawn clippings back into the grass helps retain moisture and nutrients when the area is abnormally dry.
Warm-Season Turf for Coryell
Warm-season varieties like St. Augustine or Bermuda are excellent choices for Zone 8b's 6,356 growing degree days. Plan your planting after the last frost on March 19 to ensure the soil is warm enough for rapid establishment.
Lawn Difficulty Score
Recommended Grasses
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
34.7"
Growing Degree Days
6,356.3
Base 50F
Last Spring Frost
03/19
First Fall Frost
11/18
Days Above 95F
99
Hardiness Zone
8b
Seeding Calendar — Zone 8B
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
1.2"
inches of water
Monthly Water
3,760
gallons
Estimated Monthly Cost
$30.08
at $0.008/gallon average
Estimates based on 35" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
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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