Shelby County Soil Data
Shelby County, Kentucky
USDA SSURGO / PHZMAvg pH
6.2
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.5%
Hydrologic Group
N/A
Data Story
About Soil in Shelby County, Kentucky
Balanced acidity in the heart of Shelby
Shelby County soil maintains a pH of 6.16, which is more alkaline than the Kentucky average of 5.80. This puts the region closer to the national target of 6.5, creating a hospitable environment for most garden crops. With a total soil score of 67.7, these lands rank well above the state benchmark for productivity.
Silt dominates the local landscape
Silt makes up a significant 64.8% of the soil profile, providing a smooth, flour-like texture. Clay accounts for 22.2% of the mix, while sand stays low at 13.0%. This composition creates a dense, nutrient-rich medium that resists the rapid leaching often seen in sandier regions.
Superior water storage for thirsty plants
This county offers an impressive available water capacity of 0.202 in/in, significantly higher than the Kentucky average of 0.186. Organic matter levels sit at 2.45%, beating the national 2.0% average and fueling plant growth. This combination ensures that the soil acts like a sponge, keeping moisture available for crops during Kentucky summers.
Natural moisture retention for stable growth
While specific drainage and hydrologic groups are not digitally recorded for this area, the high silt and clay content indicates slow but steady drainage. These soils are generally stable for small-scale building but may require tiling for large-scale agricultural operations. The high water capacity serves as a natural insurance policy against brief droughts.
Diverse planting options in Zone 6b
Shelby County sits in Hardiness Zone 6b, where the high soil score supports everything from orchard fruits to soybeans. The soil's ability to hold water makes it particularly good for leafy greens and heavy feeders like tomatoes. It is a fantastic time to till a new bed and enjoy the region's natural fertility.
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
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 Silt Loam. This indicates the relative proportions of sand, silt, and clay — 13% sand, 65% silt, and 22% 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 6.2, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Shelby County?
Drainage class data is not currently available for Shelby County.
What crops or plants grow well in Shelby County's soil?
Based on Shelby County's Silt Loam texture, pH of 6.2, 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 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 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
Shelby County is somewhat cooler than the Kentucky statewide average.
Planning your lawn? View lawn care data for Shelby County on LawnByCounty.com →
Other Counties in Kentucky
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.