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Vermillion County Soil Data

Vermillion County, Indiana

USDA SSURGO / PHZM

Avg pH

6.3

Texture

Silt loam

Drainage

Well drained

Organic Matter

4.1%

Hydrologic Group

B

Data Story

About Soil in Vermillion County, Indiana

Top-Tier Alfisols Define Vermillion County

Vermillion County boasts an impressive soil score of 79.1, characterized by well-developed Alfisols. The average pH of 6.28 is slightly acidic but remains more neutral than the Indiana average of 6.08.

The Classic Silt Loam Balance

The composition features 55.2% silt and 23.9% sand, providing a gritty yet manageable texture. This mix facilitates excellent root penetration and nutrient exchange, supported by a moderate 19.1% clay content.

High Organic Matter Boosts Growth

Organic matter is strong at 4.14%, doubling the national average of 2.0%. Combined with an available water capacity of 0.206 in/in, this soil provides a fertile, resilient foundation for high-yield agriculture.

Excellent Hydrology for Farming Efficiency

These well-drained soils belong to hydrologic group B, which indicates a higher rate of water infiltration than neighboring counties. This natural drainage reduces the risk of surface runoff and allows for quicker field access after rain.

Thriving in Vermillion’s Zone 6a

The local climate and superior soil score make this a dream for vegetable gardeners and commercial farmers alike. Focus on high-nutrient feeders like brassicas and leafy greens that can tap into the rich organic stores.

Soil Composition

Silt loam
Sand: 23.9%
Silt: 55.2%
Clay: 19.1%
Silt loam

Soil pH

6.3pH
6.2780919945258
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

Group B — Moderate Runoff

Moderately deep, moderately well-drained soils with moderate infiltration rates. Good balance of drainage and water retention.

Runoff potential:Moderate

Drainage Class

Well drained

Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.

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.

Soil Amendment Products

Browse products to improve your soil health and lawn performance.

Browse Soil Amendments

Frequently Asked Questions

What type of soil does Vermillion County have?

Vermillion County's soil is classified as Silt loam. This indicates the relative proportions of sand, silt, and clay — 24% sand, 55% silt, and 19% clay. Loamy soils hold moisture well and support a wide range of plants.

Is Vermillion County's soil acidic or alkaline?

Vermillion County's soil has a pH of 6.3, which is moderately acidic. This range suits many crops and is common across much of the eastern US.

What is the drainage class for Vermillion County?

Vermillion 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 Vermillion County's soil?

Based on Vermillion County's Silt loam texture, pH of 6.3, and Well drained, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens, most annual and perennial crops.

What USDA soil order is found in Vermillion County?

Vermillion County's dominant soil order is Alfisols. Alfisols are moderate to high base-status soils with a clay-enriched subsoil. They support productive forests and cropland across temperate regions.

Soil & Planting Advisory: Vermillion County

Soil Verdict

Vermillion County is in USDA hardiness zone 6a, a moderate climate zone. where winter lows can reach -10°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

Vermillion County closely matches the Indiana average hardiness conditions.

Other Counties in Indiana

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.