Randolph County Soil Data
Randolph County, Alabama
Avg pH
5.1
Texture
Gravelly clay loam
Drainage
Well drained
Organic Matter
1.3%
Hydrologic Group
B
Data Story
About Soil in Randolph County, Alabama
Gravelly Acidic Soils of Randolph
Randolph County features gravelly clay loam Ultisols with an average pH of 5.09, one of the most acidic in the state. This level is far below the national median of 6.5, requiring significant attention to soil pH management.
A Rugged, Gravelly Texture
The soil composition includes 54.9% sand and 16.4% clay, but its gravelly nature makes it distinct from typical coastal soils. This texture can be difficult for traditional tillage but provides a unique environment for specialized crops.
Opportunity for Soil Improvement
Organic matter is currently 1.27%, trailing the Alabama state average of 1.74%. With an available water capacity of 0.120 in/in, this soil holds less moisture than the state average, requiring gardeners to plan for dry spells.
Well-Drained Rugged Terrain
This soil is officially classified as well-drained and belongs to hydrologic group B, allowing for moderate water infiltration. These traits help prevent standing water but contribute to a low overall soil score of 9.3.
Best for Acid-Loving Ornamentals
Hardiness zone 8a is perfect for acid-loving shrubs like hydrangeas and blueberries. With regular additions of lime and organic matter, you can transform this gravelly soil into a beautiful and productive landscape.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group B — Moderate Runoff
Moderately deep, moderately well-drained soils with moderate infiltration rates. Good balance of drainage and water retention.
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 clay loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Randolph County have?
Randolph County's soil is classified as Gravelly clay loam. This indicates the relative proportions of sand, silt, and clay — 55% sand, 25% silt, and 16% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Randolph County's soil acidic or alkaline?
Randolph County's soil has a low pH of 5.1, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Randolph County?
Randolph 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 Randolph County's soil?
Based on Randolph County's Gravelly clay loam texture, pH of 5.1, 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 Randolph County?
Randolph County's dominant soil order is Ultisols. Ultisols are highly weathered, clay-rich soils common in humid regions. They are low in natural fertility and often require lime and fertilizer for agriculture.
Planning your lawn? View lawn care data for Randolph County on LawnByCounty.com →
Other Counties in Alabama
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.