Lawn Care Guide for Henry County
Henry County, Tennessee
Data Story
About Lawn Care in Henry County, Tennessee
Henry County: Near the State Average
Henry County earns a lawn difficulty score of 47.5, placing it just slightly below the Tennessee average of 48.0. This Zone 7b county offers a more manageable environment than many of its neighbors to the south. While it isn't quite as easy as the national median of 50.0, it provides a fair middle ground for local gardeners.
Standard Tennessee Precipitation and Growth
The county receives 55.0 inches of rain annually, which is almost identical to the state average. With 33 extreme heat days, the thermal stress is slightly lower than the Tennessee average of 36 days. The growing season typically runs for several months, anchored by 4,443 growing degree days and a mid-April start.
Neutralizing Acidic Henry County Soil
The local soil pH is 5.53, which is more favorable than many neighboring counties but still requires lime to hit the 6.0-7.0 sweet spot. The soil contains a balanced mix of 19.4% clay and 19.0% sand, providing a stable medium for root development. Without specific drainage class data, observing your yard's runoff patterns after a heavy rain is recommended.
Navigating Twenty Weeks of Drought
Henry County lawns faced 20 weeks of drought in the past year, and 100% of the area is currently abnormally dry. Fortunately, none of the county is in severe drought levels, making standard conservation practices effective. Focus on watering in the early morning to minimize evaporation and maximize absorption.
Spring Start for Zone 7b Lawns
Tall fescue is a popular choice here, though warm-season Bermuda also performs well given the 4,443 growing degree days. The ideal time to start your lawn is after the last spring frost on April 7 to avoid cold damage to young shoots. Be sure to have your lawn established before the first fall frost on October 31.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
55.0"
Growing Degree Days
4,443.2
Base 50F
Last Spring Frost
04/07
First Fall Frost
10/31
Days Above 95F
33
Hardiness Zone
7b
Seeding Calendar — Zone 7B
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 55" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Henry County
Excess Moisture & Fungal Disease
High annual rainfall (55 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
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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