Shelby County Soil Data
Shelby County, Indiana
USDA SSURGO / PHZMAvg pH
6.6
Texture
Loam
Drainage
Well drained
Organic Matter
3.9%
Hydrologic Group
N/A
Data Story
About Soil in Shelby County, Indiana
Shelby’s Neutral and Robust Soils
Shelby County features an average pH of 6.59, which is slightly higher than the national 6.5 median and more neutral than the 6.08 state average. This makes it one of the more chemically balanced counties in Indiana for general plant health. The soil provides a versatile foundation for both large-scale agriculture and home landscaping.
Silt and Sand for Easy Tilling
The soil mix contains 31.5% sand, 47.4% silt, and 19.2% clay. The higher sand content compared to neighboring counties makes these soils easier to till and allows for better drainage. This balanced texture prevents the ground from becoming too sticky or too loose.
Rich Organic Matter and High Scores
Organic matter levels are strong at 3.94%, nearly double the national average of 2.0%. Although the available water capacity of 0.199 is just below the state average, the high soil score of 79.0 reflects its overall quality. This land is naturally predisposed to produce high yields with standard management.
Well-Drained Land for Healthy Roots
Classified as well drained, Shelby's soil is excellent at moving excess water away from plant roots. This reduces the risk of fungal diseases and allows for more flexible timing for spring planting. It is a highly desirable trait for farmers and homeowners alike who want to avoid soggy yards.
A Gardeners Paradise in Zone 6a
With a 6a hardiness rating and a near-perfect pH, Shelby County is a great place to start a diverse garden. You can grow a wide range of vegetables and flowers without the constant need for chemical adjustments. From sweet corn to roses, almost everything thrives in this well-balanced soil.
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
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
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Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Shelby County have?
Shelby County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 31% sand, 47% silt, and 19% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Shelby County's soil acidic or alkaline?
Shelby County's soil has a pH of 6.6, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Shelby County?
Shelby 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 Shelby County's soil?
Based on Shelby County's Loam texture, pH of 6.6, 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 Shelby County?
The dominant USDA soil order for Shelby County is not currently available in our dataset.
Soil & Planting Advisory: Shelby County
Soil Verdict
Shelby 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
Shelby County closely matches the Indiana average hardiness conditions. The zone range of 6a-6b within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Shelby County on LawnByCounty.com →
Other Counties in Indiana
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.