Oglethorpe County Soil Data
Oglethorpe County, Georgia
Avg pH
5.5
Texture
Gravelly loam
Drainage
Well drained
Organic Matter
1.2%
Hydrologic Group
C
Data Story
About Soil in Oglethorpe County, Georgia
Acidic Alfisols of Oglethorpe County
Oglethorpe's dominant soil is classified under the Alfisols order with a unique gravelly loam texture. The average pH of 5.50 is acidic compared to the national median of 6.5 but slightly higher than the state average. This acidity level requires careful management for acid-sensitive plants.
Loamy Mix with High Water Retention
The soil contains 55.1% sand, 27.0% silt, and 17.9% clay, creating a balanced but gravelly texture. This mix provides enough clay to hold nutrients while the sand and gravel aid in structural stability. It offers a moderate challenge for workability but rewards the effort with good mineral content.
Superior Water Capacity for Growth
At 1.22%, the organic matter is lower than the 1.83% state average. However, the available water capacity is 0.139 in/in, which is significantly better than the Georgia average of 0.114. This means the soil holds onto moisture remarkably well during dry spells.
Well Drained with Slow Infiltration
Oglethorpe's soil is well drained but belongs to hydrologic group C. Group C indicates a slow infiltration rate when saturated, so runoff can be an issue during heavy storms. Proper site grading is important for preventing water from pooling around foundations.
Bountiful Harvests in Zone 8a
The local climate in Zone 8a supports a huge variety of perennial fruits and annual vegetables. The high water capacity makes this county great for moisture-loving crops like corn or squash. Start a garden today and experience the productivity of Oglethorpe soil.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group C — Moderate-High Runoff
Soils with slow infiltration rates, often with a layer that impedes downward water movement. Higher clay content restricts drainage.
Drainage Class
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
Soil Profile
Dominant texture: Gravelly loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Oglethorpe County have?
Oglethorpe County's soil is classified as Gravelly loam. This indicates the relative proportions of sand, silt, and clay — 55% sand, 27% silt, and 18% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Oglethorpe County's soil acidic or alkaline?
Oglethorpe County's soil has a low pH of 5.5, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Oglethorpe County?
Oglethorpe County has a dominant drainage class of "Well drained." Well-drained soils allow excess water to move through quickly, reducing waterlogging risk and supporting most field and garden crops.
What crops or plants grow well in Oglethorpe County's soil?
Based on Oglethorpe County's Gravelly loam texture, pH of 5.5, and Well drained, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Oglethorpe County?
Oglethorpe County's dominant soil order is Alfisols. Alfisols are moderate to high base-status soils with a clay-enriched subsoil. They support productive forests and cropland across temperate regions.
Planning your lawn? View lawn care data for Oglethorpe County on LawnByCounty.com →
Other Counties in Georgia
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.