Lamar County Soil Data
Lamar County, Mississippi
Avg pH
4.8
Texture
Sandy Loam
Drainage
N/A
Organic Matter
4.4%
Hydrologic Group
N/A
Data Story
About Soil in Lamar County, Mississippi
Extremely acidic soil profile
Lamar County has highly acidic soil with an average pH of 4.79. This is one of the lowest in the region, falling far short of the national 6.5 median and the state's 5.30 average.
Sand-heavy and easy to dig
The soil is 52.4% sand and 10.4% clay, a ratio that favors drainage over nutrient storage. This sandy mix is very easy to till but requires consistent management to prevent drying out in the sun.
Exceptional organic matter content
Remarkably, organic matter is 4.44%, more than double the national average of 2.0%. Despite a lower water capacity of 0.155 in/in, this high organic content provides a massive boost to soil health.
Rapid water movement
While detailed drainage classes are unavailable, the high sand content generally facilitates quick water movement. This makes the county well-suited for specialized crops that dislike 'wet feet' or standing water.
A paradise for peppers
Zone 8b supports a long growing season for heat-lovers like peppers and tomatoes. Capitalize on that high organic matter by planting a diverse garden and adding lime to manage the acidity.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Sandy Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Lamar County have?
Lamar County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 52% sand, 31% silt, and 10% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Lamar County's soil acidic or alkaline?
Lamar County's soil has a low pH of 4.8, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Lamar County?
Drainage class data is not currently available for Lamar County.
What crops or plants grow well in Lamar County's soil?
Based on Lamar County's Sandy Loam texture, pH of 4.8, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens.
What USDA soil order is found in Lamar County?
The dominant USDA soil order for Lamar County is not currently available in our dataset.
Planning your lawn? View lawn care data for Lamar County on LawnByCounty.com →
Other Counties in Mississippi
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.