Latimer County Soil Data
Latimer County, Oklahoma
USDA SSURGO / PHZMAvg pH
5.3
Texture
Water
Drainage
N/A
Organic Matter
1.2%
Hydrologic Group
D
Data Story
About Soil in Latimer County, Oklahoma
Strongly Acidic Soils of the Ouachitas
Latimer County features a notably acidic pH of 5.27, which is much lower than the state average of 6.06 and the national median of 6.5. This acidity is typical of the forested, high-rainfall regions of eastern Oklahoma. While specific taxonomic data is unavailable, the low pH strongly influences what can grow here.
Silty Texture Near Mountainous Terrain
The soil is composed of 38.8% silt and 37.3% sand, with a lower clay content of 16.7%. This silty-sand mix is often found in valleys and influenced by the local hydrology of the Ouachita Mountains. It is generally easy to work but requires amendments to manage its high acidity.
Typical Organic Matter and Water Storage
The available water capacity is 0.143 in/in, essentially matching the Oklahoma state average of 0.144. Organic matter stands at 1.24%, which is lower than the state benchmark of 1.72%. For better yields, local growers often need to apply lime and organic fertilizers to balance the soil's chemistry.
Slow Infiltration and High Runoff
Classified in hydrologic group D, Latimer County soils have a high runoff potential due to very slow infiltration. This is a critical factor for land management in hilly terrain, as heavy rains can quickly lead to erosion. Careful terracing and ground cover are recommended for any agricultural activity.
A Haven for Acid-Loving Plants
Latimer County's 7b hardiness zone and acidic soil make it a paradise for blueberries, azaleas, and pine trees. While traditional vegetables may need lime, these conditions are perfect for many specialty crops and native forest species. It is a rewarding environment for gardeners who embrace the local ecology.
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 5.3. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Latimer County have?
Latimer County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 37% sand, 39% silt, and 17% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Latimer County's soil acidic or alkaline?
Latimer County's soil has a low pH of 5.3, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Latimer County?
Drainage class data is not currently available for Latimer County.
What crops or plants grow well in Latimer County's soil?
Based on Latimer County's Water texture, pH of 5.3, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas.
What USDA soil order is found in Latimer County?
The dominant USDA soil order for Latimer County is not currently available in our dataset.
Soil & Planting Advisory: Latimer County
Soil Verdict
Latimer 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
Latimer County closely matches the Oklahoma average hardiness conditions.
Planning your lawn? View lawn care data for Latimer 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.