La Salle County Soil Data
La Salle County, Texas
Avg pH
7.5
Texture
Clay Loam
Drainage
N/A
Organic Matter
1.7%
Hydrologic Group
D
Data Story
About Soil in La Salle County, Texas
Sweet Soils of the Brush Country
La Salle County features a pH of 7.48, making it more alkaline than the 6.5 national median. The county's soil score of 29.9 is slightly higher than the state average of 28.8.
Fine Textures with High Clay Content
The soil composition includes 44.4% sand and a significant 30.5% clay. This mix makes the soil heavy and harder to work when wet, but it excels at holding onto vital plant nutrients.
Strong Organic Matter Levels for South Texas
With 1.70% organic matter, La Salle stays above the state average of 1.66%. The available water capacity is also high at 0.141 in/in, offering a good reservoir for plants during dry spells.
Managing Slow-Draining Hydrologic Group D
Falling into hydrologic group D, these soils drain slowly and can pose challenges for building foundations. The high clay content means water moves through the profile at a sluggish pace.
Long Growing Seasons in Zone 9a
The warm 9a hardiness zone supports a wide variety of semi-tropical and drought-hardy plants. Residents should focus on native species that thrive in the county's naturally alkaline environment.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group D — High Runoff
Clay soils with very slow infiltration rates. Highest runoff potential. These soils have a permanent high water table or are shallow over impervious material.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Clay Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does La Salle County have?
La Salle County's soil is classified as Clay Loam. This indicates the relative proportions of sand, silt, and clay — 44% sand, 25% silt, and 31% clay. Loamy soils hold moisture well and support a wide range of plants.
Is La Salle County's soil acidic or alkaline?
La Salle County's soil has a pH of 7.5, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for La Salle County?
Drainage class data is not currently available for La Salle County.
What crops or plants grow well in La Salle County's soil?
Based on La Salle County's Clay Loam texture, pH of 7.5, 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 La Salle County?
The dominant USDA soil order for La Salle County is not currently available in our dataset.
Planning your lawn? View lawn care data for La Salle County on LawnByCounty.com →
Other Counties in Texas
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.