Lawn Care Guide for Highlands County
Highlands County, Florida
USDA SSURGO / PHZMData Story
About Lawn Care in Highlands County, Florida
High Difficulty for Central Florida Lawns
Highlands County presents a challenging environment with a lawn difficulty score of 14.7, trailing both the state and national averages. Located in hardiness zone 9b, this region demands more effort and resources than 85% of the country to maintain a lush lawn. Growers must adapt to high heat and very specific soil chemistry.
Extended Seasons and Intense Heat
With 126 extreme heat days, Highlands is much hotter than the state average of 92. The region receives 52.8 inches of rain annually, which is near the Florida average, but the 8,448 growing degree days indicate a very long growing season. This combination requires careful irrigation management to prevent turf from scorching during the peak summer months.
Correcting Highly Acidic Ridge Soils
Highlands County features some of the state's most acidic soil with a pH of 4.61, far lower than the ideal 6.0-7.0 range. The soil is 76.7% sand and only 2.0% clay, providing very little natural nutrient retention. Aggressive liming and the addition of organic matter are essential steps to stabilize the soil foundation.
Navigating 100% Severe Drought Coverage
The entire county is currently experiencing severe drought, having spent 34 weeks in drought conditions over the past year. Without proper intervention, these conditions can lead to permanent turf loss in sandy areas. Prioritizing water conservation through mulch-mowing and morning-only irrigation is vital for preserving your lawn.
Starting Your Highlands County Lawn
St. Augustine grass remains a popular choice for zone 9b due to its heat tolerance, though Bahia is better for low-water sites. Plan your major lawn work for after February 1, which marks the typical end of the spring frost risk. This early start gives your turf time to mature before the 126 days of 90-degree heat arrive.
Lawn Difficulty Score
Top Grass Fit for Highlands County
Excellent match
Pennington Zenith Zoysia Grass Seed & Mulch
Pennington
Top cultivar score: 82/100
Zone 9b vs Zoysiagrass's 6–9 band.
Soil pH 4.61042155484559 vs Zoysiagrass's 6–6.5 window.
Precipitation 52.8025" + 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 Highlands County, USDA zone 9b, soil pH 4.6, Pennington Zenith Zoysia Grass Seed & Mulch scores 82/100 — 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
Best Grass Seed for Highlands County
Zone 9b • Warm-season grasses thrive here.
Find Seeds for Zone 9bClimate Snapshot
Annual Precip
52.8"
Growing Degree Days
8,447.967
Base 50F
Last Spring Frost
02/01
First Fall Frost
01/08
Days Above 95F
126
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
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 53" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Highlands County
Excess Moisture & Fungal Disease
High annual rainfall (53 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
Acidic Soil
Soil pH of 4.6 is below the ideal range for most grasses (6.0-7.0). Apply agricultural lime to raise pH gradually.
Persistent Drought Conditions
Highlands County experienced drought conditions for 34 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: Highlands County
Lawn Verdict
Highlands 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 8,447.967 growing degree days annually, supporting vigorous warm-season lawns. Mild year-round temperatures create a relatively low-stress environment for turf. High annual precipitation (52.8 inches) supports lush growth but increases disease pressure.
Seasonal Breakdown
Wait until after February 1 to seed or overseed; soil temperatures should consistently reach 50-55°F. Summers are warm (July averages 81.8°F); monitor for heat stress and water when soil is dry 2-3 inches down. With 125.8 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 January 8; this is the best renovation window. Mild winters (January averages 61.3°F) allow year-round mowing for warm-season lawns and minimal dormancy.
Watering Guidance
Highlands County receives abundant rainfall (52.8 inches annually), so lawns rarely need supplemental irrigation. 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
Highlands County is close to the Florida average temperature, 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 Highlands County in?
What is the best grass for Highlands County?
How much rainfall does Highlands County get?
What is the soil pH in Highlands 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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