Lawn Care Guide for Coffee County
Coffee County, Tennessee
USDA SSURGO / PHZMThis week in Coffee County · next up in about 5 weeks (Sep 3)
Get ready to seed cool-season grass — the best fall window is about to open.
Data Story
About Lawn Care in Coffee County, Tennessee
Steady Growth Conditions in Coffee County
Coffee County holds a lawn difficulty score of 54.1, indicating it is slightly easier to maintain a yard here than in the rest of Tennessee. This score outperforms the national median of 50.0 as well.
Coping with Heavy Southern Rains
The county receives a high 60.1 inches of precipitation annually, which is well above the ideal range. However, with only 19 extreme heat days, lawns are less likely to suffer from the mid-summer burnout seen elsewhere in the state.
Well-Drained Silt Loam Foundation
The gravelly silt loam soil is classified as well-drained, which helps manage the high annual rainfall. You may still need lime to address the 5.37 pH, as most turf thrives closer to a neutral 6.0 or 7.0.
Resilient Turfs and Drought Cycles
The county only spent 9 weeks in drought over the last year, despite 100% currently being abnormally dry. This relatively short drought history helps established lawns recover quickly without permanent damage.
Plan Your Seeding for Mid-April
Tall Fescue is a durable choice for this 7b zone, handling the 4,099 growing degree days with ease. Aim to get your seeds in the ground after the April 6th frost date to ensure strong germination.
Lawn Difficulty Score
Soil Summary
pH
5.4
Texture
Gravelly silt loam
Drainage
Well drained
Organic Matter
1.8%
Top Grass Fit for Coffee County
Excellent match
Jonathan Green Black Beauty Ultra
Jonathan Green
Top cultivar score: 92/100
Zone 7b vs Tall Fescue's 3–8 band.
Soil pH 5.37412658180158 vs Tall Fescue's 5.5–6.5 window.
Precipitation 60.07333333333333" + soil AWC vs Tall Fescue's 20–30" need.
Growing-degree-days + frost window vs a intermediate-difficulty establishment.
If you spend any time on lawn care forums, Reddit's r/lawncare, or YouTube lawn channels, one name comes up more than any other: Jonathan Green Black Beauty Ultra. It's practically a cult favorite, and the label, cultivar story, and long-running owner reports explain why. The secret is in the genetics.
In Coffee County, USDA zone 7b, soil pH 5.4, gravelly silt loam, Jonathan Green Black Beauty Ultra scores 92/100 — a strong zone match, adequate moisture, and a long enough establishment window.
Recommended Grasses
Tall Fescue
Festuca arundinacea
Bermudagrass
Cynodon dactylon
Choosing grass in Coffee County
Acidic soil (pH 5.4) is the main thing shaping grass choice in Coffee County. Here's how to work with it — then the specific pick.
- Amending your soil before you seedLime, timing, and the acid-tolerant shortlist.
- Tall Fescue, explainedTraits, care, and where Tall Fescue wins — the species behind your top match.
Top match for Coffee County: Tall Fescue
See the full breakdownPremium Grass Seeds is a sister site in our network. We may earn a commission from qualifying purchases made through its retailer links — this never affects your price. Guidance here reflects your county’s climate and soil data, not hands-on testing.
Climate Snapshot
Annual Precip
60.1"
Growing Degree Days
4,099.433
Base 50F
Last Spring Frost
04/06
First Fall Frost
10/30
Days Above 95F
19
Hardiness Zone
7b
Seeding Calendar — Coffee County
Personalized to this county’s frost dates — a 207-day growing season. Windows below are computed from local last-spring and first-fall frost normals, so they differ county-to-county even within USDA Zone 7B.
Plan your seeding — Coffee County
Pick a grass and a goal to get a personalized schedule anchored to this county’s frost dates.
- 1Prepare the seedbedApr 5 – Apr 18
Mow low, dethatch or rake, and loosen the top ½ inch of soil so seed makes good contact.
- 2Sow seedApr 19 – May 17
Best window to sow Centipedegrass in Coffee County, anchored to your local frost dates.
- 3EstablishMay 18 – Jun 14
Protect young seedlings: mow only after they reach ~3 inches and hold off on weed pre-emergents until established.
Loam holds moisture evenly — water about ¼ inch once or twice daily to keep the top inch of the seedbed consistently moist until germination.
You’re in the transition zone — both cool- and warm-season grasses can work; the schedule above follows the species you selected.
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
- Mow at recommended height weekly
- 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
- Keep lawn clear of debris
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 60" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Coffee County
Excess Moisture & Fungal Disease
High annual rainfall (60 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
Acidic Soil
Soil pH of 5.4 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.
Lawn Care Advisory: Coffee County
Lawn Verdict
Coffee County falls in USDA hardiness zone 7b, a favorable range for both cool- and warm-season grasses. with winter lows reaching around 5.0°F. and 4,099.433 growing degree days annually, supporting vigorous warm-season lawns. High annual precipitation (60.1 inches) supports lush growth but increases disease pressure.
Seasonal Breakdown
Wait until after April 6 to seed or overseed; soil temperatures should consistently reach 50-55°F. Cool summers (July averages 75.9°F) reduce heat stress — maintain regular mowing and moderate watering. Aerate and overseed cool-season lawns by early fall, well before October 30; this is the best renovation window. Cool winters (January averages 37.4°F) mean slow or dormant growth; keep debris off the lawn.
Watering Guidance
Coffee County receives abundant rainfall (60.1 inches annually), so lawns rarely need supplemental irrigation. Currently, 100.0% of the county is in abnormally dry according to the US Drought Monitor. Standard warm-season watering of 1 inch per week is usually adequate during summer.
Regional Context
Coffee County is close to the Tennessee average temperature, it is somewhat wetter than the state average, USDA zone 7b helps guide grass selection compared to neighboring counties.
Dig deeper into Coffee County
Coffee County is a USDA Zone 7B, loamy-soil, transition-zone county. Explore the data that shapes its lawn:
Want detailed soil composition, drainage classes, and soil series data? View soil details on SoilByCounty.com
Frequently Asked Questions
What USDA hardiness zone is Coffee County in?
What is the best grass for Coffee County?
How long is the growing season in Coffee County?
How much rainfall does Coffee County get?
What is the soil pH in Coffee 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.
Explore more data for Coffee County