Seward County Soil Data
Seward County, Kansas
Avg pH
7.4
Texture
Sandy Loam
Drainage
N/A
Organic Matter
1.3%
Hydrologic Group
N/A
Data Story
About Soil in Seward County, Kansas
Seward County’s Sandy Alkaline Profile
Seward County has an average pH of 7.40, significantly more alkaline than the national median of 6.5. This value sits well above the Kansas average of 6.80, which can limit the availability of iron and phosphorus. The soil score of 26.3 reflects the harsh growing conditions of this sandy High Plains region.
High Sand Content and Rapid Drainage
The soil is dominated by 52.5% sand, with only 29.9% silt and 16.2% clay. This high sand percentage leads to very fast drainage but poor nutrient and water retention. It is a challenging composition for traditional crops without significant irrigation and fertilization.
Low Organic Matter and Water Storage
Organic matter is quite low at 1.25%, far below the Kansas average of 2.22%. Available water capacity is also the lowest in the group at 0.143 in/in, compared to the state average of 0.180 in/in. These soils require intensive management to support sustained agricultural growth.
Fast-Draining Sands in the Southwest
Specific drainage classes and hydrologic groups are currently unlisted for Seward County. Given that over half the soil is sand, expect very high permeability and potential for wind erosion. For construction or landscaping, managing rapid water infiltration is the primary concern.
Tough Plants for Zone 6b
Seward County is in Hardiness Zone 6b, requiring drought-tolerant and heat-hardy species. Native grasses and xeric plants like cacti or agave are well-suited to the sandy, alkaline ground. If you garden here, use heavy mulching and frequent organic amendments to keep your plants thriving in the dry climate.
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: Sandy Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Seward County have?
Seward County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 52% sand, 30% silt, and 16% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Seward County's soil acidic or alkaline?
Seward County's soil has a pH of 7.4, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Seward County?
Drainage class data is not currently available for Seward County.
What crops or plants grow well in Seward County's soil?
Based on Seward County's Sandy Loam texture, pH of 7.4, and drainage class, the soil is well suited for drought-tolerant crops and native grasses, row crops and vegetable gardens.
What USDA soil order is found in Seward County?
The dominant USDA soil order for Seward County is not currently available in our dataset.
Planning your lawn? View lawn care data for Seward County on LawnByCounty.com →
Other Counties in Kansas
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.