Lawrence County Soil Data
Lawrence County, Arkansas
Avg pH
5.6
Texture
Loam
Drainage
Subaqueous
Organic Matter
6.7%
Hydrologic Group
N/A
Data Story
About Soil in Lawrence County, Arkansas
Lawrence County's Soil Profile
The average pH in Lawrence County is 5.62, which is slightly higher than the Arkansas average of 5.56. Though it remains more acidic than the national median of 6.5, it provides a stable environment for regional vegetation. Specific taxonomic orders and textures for the whole county are currently not available.
Silt-Rich Land Composition
The soil is comprised of 48.9% silt, 29.0% sand, and 14.9% clay. This high silt percentage suggests a fine-textured soil that holds onto nutrients and moisture more effectively than sandier soils. It offers a smooth, workable surface for both large-scale farming and home gardening.
Strong Organic Matter Levels
Lawrence County boasts a high organic matter content of 6.72%, significantly beating the state average of 4.15%. This rich organic foundation is paired with an available water capacity of 0.153 in/in, which is also above the state benchmark. This combination creates a highly fertile environment for a variety of crops.
Navigating Subaqueous Conditions
The dominant drainage class is categorized as subaqueous, suggesting many areas are permanently or frequently saturated with water. This unique condition requires specialized management for both agriculture and construction to handle the excess moisture. Understanding these wet conditions is key to successful land use in the county.
Diverse Planting in Zone 7b
Located in Hardiness Zone 7b, the county is well-suited for moisture-tolerant plants and traditional summer vegetables. The high organic matter means your plants will have plenty of natural fuel to grow large and healthy. Start a garden today and reap the rewards of this naturally fertile Arkansas soil.
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
Subaqueous
Drainage class: Subaqueous
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Lawrence County have?
Lawrence County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 29% sand, 49% silt, and 15% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Lawrence County's soil acidic or alkaline?
Lawrence County's soil has a pH of 5.6, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Lawrence County?
Lawrence County has a dominant drainage class of "Subaqueous." Moderate drainage allows adequate moisture retention while still permitting excess water to drain over time.
What crops or plants grow well in Lawrence County's soil?
Based on Lawrence County's Loam texture, pH of 5.6, and Subaqueous, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Lawrence County?
The dominant USDA soil order for Lawrence County is not currently available in our dataset.
Planning your lawn? View lawn care data for Lawrence County on LawnByCounty.com →
Other Counties in Arkansas
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.