Le Flore County Soil Data
Le Flore County, Oklahoma
USDA SSURGO / PHZMAvg pH
5.9
Texture
Water
Drainage
N/A
Organic Matter
1.3%
Hydrologic Group
D
Data Story
About Soil in Le Flore County, Oklahoma
Acidic and Dynamic Eastern Soils
Le Flore County has an average soil pH of 5.87, which is slightly more acidic than the state average of 6.06 and below the national median of 6.5. This profile is common in eastern Oklahoma's timberlands and river valleys. Without specific taxonomic data, the pH remains the primary guide for local soil management.
Sand and Silt Dominance
The soil is a mix of 40.0% sand and 36.3% silt, with 18.8% clay. This texture is highly influenced by the county's significant water features and complex topography. The result is a soil that is relatively easy to till but can be prone to erosion if left without ground cover.
Meeting the State Standard for Moisture
The available water capacity in Le Flore County is 0.144 in/in, exactly matching the Oklahoma state average. Organic matter is 1.27%, trailing both the state average of 1.72% and the national 2.0% benchmark. This suggests that while the soil holds water well, it benefits greatly from supplemental nutrients.
High Runoff Potential in the Valley
The soil falls into hydrologic group D, which indicates very slow infiltration and a high potential for runoff. This is especially important for land along the Poteau and Arkansas Rivers, where surface water management is a constant priority. Builders should expect slow drainage during the wetter spring months.
Zone 7b: From Timber to Tomatoes
Le Flore County's zone 7b climate is excellent for a wide variety of gardening, from timber production to summer vegetables. The acidic soil is naturally suited for blackberries and strawberries, which thrive in this region. Whether you are farming the flats or gardening the hills, the long growing season is a huge plus.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group D — High Runoff
Clay soils with very slow infiltration rates. Highest runoff potential. These soils have a permanent high water table or are shallow over impervious material.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Water
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.9. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Le Flore County have?
Le Flore County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 40% sand, 36% silt, and 19% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Le Flore County's soil acidic or alkaline?
Le Flore County's soil has a pH of 5.9, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Le Flore County?
Drainage class data is not currently available for Le Flore County.
What crops or plants grow well in Le Flore County's soil?
Based on Le Flore County's Water texture, pH of 5.9, and drainage class, the soil is well suited for vegetables, grains, and most field crops.
What USDA soil order is found in Le Flore County?
The dominant USDA soil order for Le Flore County is not currently available in our dataset.
Soil & Planting Advisory: Le Flore County
Soil Verdict
Le Flore County is in USDA hardiness zone 7b, a moderate climate zone. where winter lows can reach 5°F. Mild winters mean soil rarely freezes deeply, allowing year-round microbial activity and faster organic matter breakdown.
Planting Guidance
Warm-season crops, citrus relatives, and heat-loving ornamentals do well. Cool-season vegetables should be planted in fall and winter. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Warm soils accelerate organic matter breakdown, so compost and mulch need replenishing more frequently than in cooler zones. Sandy soils common in warm zones drain quickly; water-retentive amendments like compost or peat help hold moisture.
Regional Context
Le Flore County closely matches the Oklahoma average hardiness conditions. The zone range of 7b-8a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Le Flore County on LawnByCounty.com →
Other Counties in Oklahoma
Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.