Lawn Care Guide for Humphreys County
Humphreys County, Mississippi
Data Story
About Lawn Care in Humphreys County, Mississippi
Heavy Clay Makes Lawn Care Difficult
Humphreys County has a lawn difficulty score of 30.1, placing it just below the state average and well under the national median. Situated in Hardiness Zone 8b, the environment demands resilient grass species that can handle hot summers. The biggest hurdle for local gardeners is often the heavy soil rather than the air temperature.
High Humidity and Intense Summer Heat
The climate produces 86 extreme heat days annually, which is significantly more than the state average of 73. With 57.3 inches of annual precipitation, the environment is often damp and humid, promoting rapid growth. You can expect high demand for mowing and maintenance with 5,958 growing degree days driving the season.
Managing High Clay and Acidic Soil
The soil here is particularly challenging with a 33.7% clay content, which can lead to poor drainage and compaction. A low pH of 5.29 further complicates things, as most grasses prefer a neutral range between 6.0 and 7.0. Core aeration and lime treatments are essential tools for any Humphreys County homeowner looking for a lush lawn.
Low Current Drought Risk for Turf
Currently, only 11.4% of the county is considered abnormally dry, and there is no severe drought recorded. While the county has experienced 11 weeks of drought in the past year, the current conditions are relatively favorable. If dry weather returns, keep an eye on your clay soil, as it can crack and damage roots when dehydrated.
Early Spring Start for Warm-Season Grass
Because the last spring frost typically occurs early on March 3, you have a long window to establish your lawn. St. Augustine and Bermuda grass are the top contenders for this zone and can handle the high clay content well if maintained. You'll have until approximately November 21 before the first fall frost brings the growing season to a close.
Lawn Difficulty Score
Recommended Grasses
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
57.3"
Growing Degree Days
5,957.5
Base 50F
Last Spring Frost
03/03
First Fall Frost
11/21
Days Above 95F
86
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
0.0"
inches of water
Monthly Water
0
gallons
Estimated Monthly Cost
$0.00
at $0.008/gallon average
Estimates based on 57" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
Common Lawn Problems in Humphreys County
Excess Moisture & Fungal Disease
High annual rainfall (57 inches) increases risk of fungal diseases like brown patch and dollar spot. Ensure good drainage and avoid overwatering.
Acidic Soil
Soil pH of 5.3 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.
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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