Lawn Care Guide for Refugio County
Refugio County, Texas
USDA SSURGO / PHZMData Story
About Lawn Care in Refugio County, Texas
Tropical Humidity in Refugio
Refugio County scores a 34.8 for lawn difficulty, making it slightly easier to manage than the typical Texas county. This Zone 9b region offers a long growing season but requires specific strategies to handle the coastal heat.
High Heat and Coastal Rain
With 111 extreme heat days and 35.1 inches of rain, the climate is warm and humid. The massive 7,782 growing degree days mean your mower will stay busy from the early February spring frost date until the first frost in December.
Sandy Soils and Neutral pH
The soil here is over 52% sand, which ensures fast drainage but may require more frequent watering to keep roots hydrated. A pH of 7.05 is almost perfectly neutral, providing a solid foundation for most Southern grass varieties.
Tackling Severe Water Stress
Currently, over 90% of the county is in severe drought, part of a 35-week dry spell over the last year. Mulching your lawn with grass clippings can help retain moisture in the sandy soil and protect roots from the 111 days of triple-digit potential.
Choosing Your Warm-Season Turf
St. Augustine and Seashore Paspalum are excellent choices for this Zone 9b environment and its sandy texture. With a very early spring frost date of February 27th, you can begin your lawn projects much earlier than the rest of the state.
Lawn Difficulty Score
Top Grass Fit for Refugio County
Excellent match
Pennington Zenith Zoysia Grass Seed & Mulch
Pennington
Top cultivar score: 86/100
Zone 9b vs Zoysiagrass's 6–9 band.
Soil pH 7.04929687314412 vs Zoysiagrass's 6–6.5 window.
Precipitation 35.09" + soil AWC vs Zoysiagrass's 20–30" need.
Growing-degree-days + frost window vs a advanced-difficulty establishment.
Zenith Zoysia occupies a unique position in the grass seed market: it's essentially the only Zoysia variety widely available as seed. Most Zoysia (Emerald, Zeon, Innovation) is sold as sod or plugs at $300-500+ per 1,000 sq ft.
Limited product coverage — one vetted cultivar for this species.
Shop Pennington Zenith Zoysia Grass Seed & MulchIn Refugio County, USDA zone 9b, soil pH 7.0, Pennington Zenith Zoysia Grass Seed & Mulch scores 86/100 — a strong zone match, adequate moisture, and a long enough establishment window.
Why we ruled these out
- Outsidepride Midnight Kentucky Bluegrass Seed — USDA zone 9b is above Outsidepride Midnight Kentucky Bluegrass Seed's effective range (2–8); not recommended for this county.
See our fit-score methodology for how survivability is determined.
Recommended Grasses
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
35.1"
Growing Degree Days
7,781.75
Base 50F
Last Spring Frost
02/27
First Fall Frost
12/05
Days Above 95F
111
Hardiness Zone
9b
Seeding Calendar — Zone 9B
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
3,706
gallons
Estimated Monthly Cost
$29.64
at $0.008/gallon average
Estimates based on 35" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Refugio County
Persistent Drought Conditions
Refugio County experienced drought conditions for 35 of the past 52 weeks. Prioritize water-efficient grasses and consider reducing lawn area.
Learn more about regional lawn challenges at The Lawn Report.
Lawn Care Advisory: Refugio County
Lawn Verdict
Refugio County is in USDA hardiness zone 9b, a warm zone well-suited to heat-tolerant grasses. with winter lows reaching around 25.0°F. and 7,781.75 growing degree days annually, supporting vigorous warm-season lawns. Moderate rainfall (35.1 inches) generally supports healthy lawns with minimal supplemental watering.
Seasonal Breakdown
Wait until after February 27 to seed or overseed; soil temperatures should consistently reach 50-55°F. Summers are warm (July averages 83.9°F); monitor for heat stress and water when soil is dry 2-3 inches down. With 110.7 days above 90°F annually, warm-season grasses recover faster from summer stress than cool-season types. Aerate and overseed cool-season lawns by early fall, well before December 5; this is the best renovation window. Mild winters (January averages 55.2°F) allow year-round mowing for warm-season lawns and minimal dormancy.
Watering Guidance
With 35.1 inches of annual rainfall, established lawns typically need watering only during extended dry spells. Currently, 100.0% of the county is in severe drought according to the US Drought Monitor. Mandatory watering restrictions may be in effect; follow local guidelines and prioritize tree and shrub watering over turf. Standard warm-season watering of 1 inch per week is usually adequate during summer. High heat accumulation means warm-season grasses use water aggressively — monitor soil moisture regularly.
Regional Context
Refugio County is 5.4°F warmer than the Texas average, it is somewhat wetter than the state average, USDA zone 9b helps guide grass selection compared to neighboring counties.
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Frequently Asked Questions
What USDA hardiness zone is Refugio County in?
What is the best grass for Refugio County?
How much rainfall does Refugio County get?
What is the soil pH in Refugio County?
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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