Benton County Soil Data
Benton County, Missouri
USDA SSURGO / PHZMAvg pH
5.9
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.1%
Hydrologic Group
N/A
Data Story
About Soil in Benton County, Missouri
Acidic Landscapes in Benton
Benton County soil has a pH of 5.88, making it slightly more acidic than the state average and well below the national median of 6.5. The overall soil score of 53.0 indicates some challenges for intensive agriculture compared to state benchmarks.
Silt and Clay Structural Balance
The soil is made of 19.8% sand, 57.1% silt, and 20.1% clay. This distribution provides a fair balance of drainage and water retention, though the high silt content can lead to surface crusting after heavy rains.
Steady Water Availability
Organic matter levels are relatively low at 2.08%, falling far below Missouri's 4.74% average. However, the Available Water Capacity of 0.185 in/in is slightly better than the state average, providing a steady supply of moisture.
Moderate Permeability Profile
While specific drainage and hydrologic classifications are not listed, the soil's composition suggests moderate permeability. Improving organic matter through composting will be key to unlocking the full potential of this soil.
Versatile Zone 6b Gardening
Benton County resides in Zone 6b, providing a versatile climate for both spring and fall gardening. Focus on soil-building practices and you will find success with hardy vegetables like beans, peas, and root crops.
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: Silt Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.9. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Benton County have?
Benton County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 20% sand, 57% silt, and 20% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Benton County's soil acidic or alkaline?
Benton County's soil has a pH of 5.9, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Benton County?
Drainage class data is not currently available for Benton County.
What crops or plants grow well in Benton County's soil?
Based on Benton County's Silt Loam texture, pH of 5.9, and drainage class, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Benton County?
The dominant USDA soil order for Benton County is not currently available in our dataset.
Soil & Planting Advisory: Benton County
Soil Verdict
Benton County is in USDA hardiness zone 6b, a moderate climate zone. where winter lows can reach -5°F. Freeze-thaw cycles are moderate; soil biology slows in winter but recovers reliably in spring, supporting a broad range of plants.
Planting Guidance
A wide plant palette is possible: deciduous trees, most shrubs, cool-season vegetables, and many perennials thrive here. Winter protection (mulch, burlap wraps) helps push the zone boundary for desired species. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Moderate freeze-thaw cycles naturally aerate the soil but can also cause compaction in clay-heavy areas; annual core aeration is beneficial. Organic matter amendments decompose at a moderate pace — aim for 3-5% organic content for optimal fertility. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Benton County closely matches the Missouri average hardiness conditions.
Planning your lawn? View lawn care data for Benton County on LawnByCounty.com →
Other Counties in Missouri
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.