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Marshall County Soil Data

Marshall County, West Virginia

USDA SSURGO / PHZM

Avg pH

6.0

Texture

Silt Loam

Drainage

N/A

Organic Matter

2.9%

Hydrologic Group

N/A

Data Story

About Soil in Marshall County, West Virginia

Balanced and Neutral Soil Profile

Marshall's soil shows a pH of 6.00, which is significantly more neutral than the West Virginia state average of 5.25. While it sits just below the national median of 6.5, this balance supports a wide variety of plant life across the county.

Silt-Heavy Texture for Easy Working

The ground consists of 55.9% silt and 19.2% clay, creating a fine-textured environment that holds moisture well. The 24.1% sand component ensures the earth remains manageable and easy to work for local farmers.

Superior Water Retention for Crops

At 2.87%, the organic matter content exceeds the national average of 2.0%. Its available water capacity of 0.184 in/in is higher than the state average, providing a reliable reservoir for crops during dry spells.

High Soil Score for Local Agriculture

Marshall County earns a soil score of 60.1, indicating a relatively high-performing landscape for the region. The blend of silt and clay suggests steady moisture retention with moderate percolation, even where specific drainage classes aren't recorded.

Plant Your Zone 6b Garden

Falling within Hardiness Zone 6b, this county provides an excellent foundation for vegetable gardens and orchards. The favorable soil score and water capacity make it an ideal spot to start a sustainable home garden today.

Soil Composition

Silt Loam
Sand: 24.1%
Silt: 55.9%
Clay: 19.2%
Silt Loam

Soil pH

6.0pH
5.9958502556296
Strongly AcidicSlightly AcidicNeutralSlightly AlkalineStrongly Alkaline
Ideal lawn range: 6.0 - 7.0

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

O HorizonOrganic layer
0-2"
A HorizonTopsoil
2-10"
B HorizonSubsoil
10-30"
C HorizonParent material
30-60"
R HorizonBedrock
60"+

Typical soil profile. Actual depths vary by location.

Acidic Soil Detected

Your county's average pH is 6.0. These products help balance soil pH for healthier grass.

Browse Soil Amendments

Frequently Asked Questions

What type of soil does Marshall County have?

Marshall County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 24% sand, 56% silt, and 19% clay. Loamy soils hold moisture well and support a wide range of plants.

Is Marshall County's soil acidic or alkaline?

Marshall County's soil has a pH of 6.0, which is moderately acidic. This range suits many crops and is common across much of the eastern US.

What is the drainage class for Marshall County?

Drainage class data is not currently available for Marshall County.

What crops or plants grow well in Marshall County's soil?

Based on Marshall County's Silt Loam texture, pH of 6.0, 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 Marshall County?

The dominant USDA soil order for Marshall County is not currently available in our dataset.

Soil & Planting Advisory: Marshall County

Soil Verdict

Marshall 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

Marshall County closely matches the West Virginia average hardiness conditions. The zone range of 6a-6b within the county means soil and planting decisions should account for local elevation and topography.

Other Counties in West Virginia

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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.