Lawn Care Guide for Alfalfa County
Alfalfa County, Oklahoma
Data Story
About Lawn Care in Alfalfa County, Oklahoma
An Easier Path to Greenery
Alfalfa County earns a 58.3 lawn difficulty score, outperforming the national median and the Oklahoma state average. This Hardiness Zone 7a region offers some of the more favorable conditions in the state for residential turf care.
Sun-Drenched and Semi-Arid Growth
The county endures 83 extreme heat days per year, surpassing the state average of 76. With 32.3 inches of annual rainfall, supplemental irrigation is often necessary to sustain the 4,879 growing degree days of development.
Perfectly Balanced Soil pH
The soil pH of 6.51 sits directly in the ideal 6.0-7.0 window, minimizing the need for chemical corrections. A high sand content of 49.9% promotes drainage, though the 13.8% clay provides enough structure to hold essential nutrients.
Resilience in Dry Spells
The county spent 10 weeks in drought over the last year, though current data shows 0.0% of the area in severe drought. Utilizing mulch and efficient irrigation can help preserve moisture against the high July average temperatures of 83.1°F.
Planting for Success in Alfalfa
Warm-season grasses like Buffalo grass or Zoysia are excellent choices for this climate. Prepare your site for seeding after the April 9 spring frost to take full advantage of the long Oklahoma summer.
Lawn Difficulty Score
Recommended Grasses
Tall Fescue
Festuca arundinacea
Bermudagrass
Cynodon dactylon
Climate Snapshot
Annual Precip
32.3"
Growing Degree Days
4,879.033
Base 50F
Last Spring Frost
04/09
First Fall Frost
10/31
Days Above 95F
83
Hardiness Zone
7a
Seeding Calendar — Zone 7A
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
1.4"
inches of water
Monthly Water
4,357
gallons
Estimated Monthly Cost
$34.86
at $0.008/gallon average
Estimates based on 32" annual precipitation and estimated evapotranspiration. Actual costs vary by local water rates.
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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