Giles County Soil Data
Giles County, Virginia
USDA SSURGO / PHZMAvg pH
5.3
Texture
Loam
Drainage
N/A
Organic Matter
2.9%
Hydrologic Group
N/A
Data Story
About Soil in Giles County, Virginia
Balanced acidity in the mountain highlands
Giles County maintains an average soil pH of 5.32, which is more alkaline than the state average of 5.23 but remains more acidic than the national median of 6.5. This pH level supports a wide variety of native Appalachian flora and forest growth.
A versatile mix of sand and silt
The soil features a balanced blend of 41.3% sand and 39.8% silt, creating a texture that is easy to cultivate. With 17.5% clay, the soil offers a good compromise between drainage speed and the ability to hold essential minerals.
Strong water capacity supports resilient crops
The organic matter content of 2.91% aligns perfectly with the state average, providing a solid foundation for fertility. Furthermore, the available water capacity of 0.154 in/in exceeds the state average of 0.143, ensuring plants have access to moisture during dry spells.
Reliable moisture retention for valley farming
Though specific drainage classifications are not listed, the high silt and clay levels indicate moderate drainage that resists rapid drying. This profile supports consistent plant growth in both agricultural fields and residential gardens across the county.
Hardiness zone 7a favors cool-season staples
In zone 7a, Giles County is ideal for growing apples, root vegetables, and leafy greens. The soil's above-average water capacity makes it an excellent choice for establishing a productive and self-sustaining backyard plot.
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: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.3. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Giles County have?
Giles County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 41% sand, 40% silt, and 17% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Giles County's soil acidic or alkaline?
Giles County's soil has a low pH of 5.3, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Giles County?
Drainage class data is not currently available for Giles County.
What crops or plants grow well in Giles County's soil?
Based on Giles County's Loam texture, pH of 5.3, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens.
What USDA soil order is found in Giles County?
The dominant USDA soil order for Giles County is not currently available in our dataset.
Soil & Planting Advisory: Giles County
Soil Verdict
Giles County is in USDA hardiness zone 7a, a moderate climate zone. where winter lows can reach 0°F. Mild winters mean soil rarely freezes deeply, allowing year-round microbial activity and faster organic matter breakdown.
Planting Guidance
Warm-season crops, citrus relatives, and heat-loving ornamentals do well. Cool-season vegetables should be planted in fall and winter. 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
Warm soils accelerate organic matter breakdown, so compost and mulch need replenishing more frequently than in cooler zones. Sandy soils common in warm zones drain quickly; water-retentive amendments like compost or peat help hold moisture. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Giles County closely matches the Virginia average hardiness conditions. The zone range of 6b-7a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Giles County on LawnByCounty.com →
Other Counties in Virginia
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.