Phelps County Soil Data
Phelps County, Missouri
USDA SSURGO / PHZMAvg pH
5.7
Texture
Silt Loam
Drainage
Subaqueous
Organic Matter
5.9%
Hydrologic Group
N/A
Data Story
About Soil in Phelps County, Missouri
Acidic Ozark Soils in Phelps County
Phelps County soils are notably acidic with an average pH of 5.75, falling below both the state average of 6.09 and the national median of 6.5. While taxonomic data is limited for this area, the acidic profile is a signature characteristic of the Ozark Plateau region. This acidity influences how local plants access essential nutrients from the ground.
Silty Texture with Light Clay
The soil consists of 52.6% silt and 26.7% sand, creating a silty mix with a relatively low clay content of 13.2%. This high silt ratio ensures the ground is easy to work and manage for local growers. However, the moderate sand levels mean it may dry out faster than heavier clay soils found elsewhere in the state.
High Organic Matter, Lower Water Storage
Organic matter is impressively high at 5.85%, far exceeding the national average of 2.0% and the state average of 4.74%. Despite this richness, the available water capacity is just 0.151 in/in, which is lower than the Missouri average of 0.183 in/in. Gardeners should plan for supplemental irrigation during dry Ozark summers.
Saturated Subaqueous Drainage Patterns
The county features a subaqueous drainage class, indicating soils that are often saturated or influenced by proximity to water bodies. Because specific hydrologic group data is unavailable, land managers must observe local runoff carefully before building. Proper site selection is key to avoiding soggy foundations in these wet-leaning soils.
Cultivating Success in Zone 6b
In hardiness zone 6b, the high organic matter supports a wide range of native perennials and cool-season vegetables. While the soil is acidic, many Missouri natives thrive in these exact conditions. Start your garden today to take advantage of this naturally nutrient-dense ground.
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
Subaqueous
Drainage class: Subaqueous
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 5.7. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Phelps County have?
Phelps County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 27% sand, 53% silt, and 13% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Phelps County's soil acidic or alkaline?
Phelps County's soil has a pH of 5.7, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Phelps County?
Phelps County has a dominant drainage class of "Subaqueous." Moderate drainage allows adequate moisture retention while still permitting excess water to drain over time.
What crops or plants grow well in Phelps County's soil?
Based on Phelps County's Silt Loam texture, pH of 5.7, and Subaqueous, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Phelps County?
The dominant USDA soil order for Phelps County is not currently available in our dataset.
Soil & Planting Advisory: Phelps County
Soil Verdict
Phelps 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
Phelps County closely matches the Missouri 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 Phelps 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.