Concordia Parish Soil Data
Concordia Parish, Louisiana
USDA SSURGO / PHZMAvg pH
6.3
Texture
Silty Clay
Drainage
N/A
Organic Matter
2.2%
Hydrologic Group
N/A
Data Story
About Soil in Concordia Parish, Louisiana
Balanced pH in the Mississippi floodplains
Concordia Parish features an average pH of 6.26, which is much closer to the national median of 6.5 than the Louisiana average of 5.74. This near-neutrality is a major asset for nutrient availability. The soil is influenced heavily by the Mississippi River's historic alluvial deposits.
A heavy, clay-rich alluvial mix
The soil contains 40.1% clay and 41.6% silt, making it one of the heavier agricultural soils in the state. Sand makes up only 17.8% of the composition. This mix is excellent for holding onto fertilizers but can be very difficult to plow when it is too wet or too dry.
Solid water capacity with moderate organic matter
Organic matter is recorded at 2.16%, which is healthy by national standards but below the state average of 6.38%. The available water capacity is 0.168 in/in, slightly under the Louisiana average of 0.182 in/in. These soils are inherently fertile but require management to maintain structure.
Slow-draining heavy clays
With over 40% clay, Concordia's soil naturally resists water movement, leading to slow drainage. While specific hydrologic groups aren't listed, this texture is typical of soils that stay wet long after a rain. Proper field leveling and drainage ditches are vital for large-scale agriculture here.
Productive potential in Zone 9a
The long, warm season of Zone 9a allows for a diverse range of crops from pecans to cotton. The heavy clay soil provides the mineral richness needed for high-yield farming. Start a garden today and take advantage of a respectable soil score of 55.4.
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: Silty Clay
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Clay Soil Detected
Clay soils can struggle with drainage. These products improve soil structure and water flow.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Concordia Parish have?
Concordia Parish's soil is classified as Silty Clay. This indicates the relative proportions of sand, silt, and clay — 18% sand, 42% silt, and 40% clay. Clay soils retain water and nutrients but can have drainage challenges.
Is Concordia Parish's soil acidic or alkaline?
Concordia Parish's soil has a pH of 6.3, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Concordia Parish?
Drainage class data is not currently available for Concordia Parish.
What crops or plants grow well in Concordia Parish's soil?
Based on Concordia Parish's Silty Clay texture, pH of 6.3, 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 Concordia Parish?
The dominant USDA soil order for Concordia Parish is not currently available in our dataset.
Soil & Planting Advisory: Concordia Parish
Soil Verdict
Concordia Parish is in USDA hardiness zone 9a, a warm climate zone. where winter lows can reach 20°F. Warm winters keep soil biology active nearly year-round, accelerating decomposition but increasing pest and disease pressure in topsoil.
Planting Guidance
Tropical and subtropical plants are viable. Year-round gardening is possible, though summer heat may limit some cool-season crops. Frost is rare; tender plants can overwinter with minimal protection. 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
Rapid organic matter turnover means soils can become nutrient-poor quickly; test annually and fertilize based on results. High soil temperatures favor certain soilborne pathogens; practice crop rotation and avoid overwatering.
Regional Context
Concordia Parish closely matches the Louisiana average hardiness conditions.
Planning your lawn? View lawn care data for Concordia Parish on LawnByCounty.com →
Other Counties in Louisiana
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.