Greene County Soil Data
Greene County, Tennessee
Avg pH
5.3
Texture
Silt loam
Drainage
Moderately well drained
Organic Matter
3.6%
Hydrologic Group
C
Data Story
About Soil in Greene County, Tennessee
Acidic Ultisols of East Tennessee
Greene County is characterized by Ultisols and a dominant silt loam texture. Its average pH of 5.26 is slightly more acidic than the state average of 5.35 and far below the national median of 6.5. This acidity is typical for the region but necessitates careful pH management for most agricultural uses.
Balanced Silt Loam with High Silt
The soil contains 44.2% silt, 30.7% sand, and 20.5% clay, providing a classic silt loam feel. This combination allows for decent nutrient retention while the sand content helps maintain some porosity. It is a versatile mix that supports varied farming activities but remains susceptible to compaction from heavy machinery.
Strong Organic Content with Moderate Storage
Organic matter is a highlight here at 3.56%, significantly outpacing the state average of 2.44%. The available water capacity is 0.154 in/in, which is slightly lower than the Tennessee average of 0.171. The high organic levels provide a great nutrient base, though supplemental irrigation may be needed in the peak of summer.
Moderately Well Drained in Group C
The county's soils are moderately well drained and belong to hydrologic group C, indicating somewhat slow water transmission. This can lead to temporary wetness in low-lying areas after heavy rainfall, affecting planting schedules. Builders and farmers should account for these moderate drainage speeds when planning drainage systems.
Bountiful Gardens in Zone 7b
Greene County's Zone 7b status allows for a long growing season for staples like corn and winter squash. The above-average organic matter makes it a fantastic location for sustainable gardening and small-scale homesteading. Pick up a soil test kit and start your planting season today.
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
Moderately well drained
Water is removed somewhat slowly. May have a slowly permeable layer or seasonal water table.
Soil Profile
Dominant texture: Silt loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Greene County have?
Greene County's soil is classified as Silt loam. This indicates the relative proportions of sand, silt, and clay — 31% sand, 44% silt, and 21% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Greene County's soil acidic or alkaline?
Greene 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 Greene County?
Greene County has a dominant drainage class of "Moderately 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 Greene County's soil?
Based on Greene County's Silt loam texture, pH of 5.3, and Moderately 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 Greene County?
Greene 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 Greene County on LawnByCounty.com →
Other Counties in Tennessee
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.