Vermilion Parish Soil Data
Vermilion Parish, Louisiana
USDA SSURGO / PHZMAvg pH
5.9
Texture
Silty Clay Loam
Drainage
N/A
Organic Matter
15.9%
Hydrologic Group
N/A
Data Story
About Soil in Vermilion Parish, Louisiana
Vermilion's Rich Soil Profile
Vermilion Parish boasts a high soil score of 84.2, far exceeding the state average of 54.6. Its average pH of 5.92 remains more acidic than the national median of 6.5, though it is less acidic than many neighboring parishes. While specific taxonomic data is unavailable, these chemical levels provide a robust foundation for local agriculture.
Balanced Silt and Clay Mix
The soil contains 39.4% silt and 27.5% clay, anchored by a low 16.7% sand content. This composition creates a dense structure that holds nutrients effectively while providing enough body for large-scale farming. The significant clay fraction requires careful management to prevent compaction during wet seasons.
Exceptional Organic Vitality
With a massive 15.94% organic matter content, Vermilion more than doubles the Louisiana average of 6.38%. Its available water capacity of 0.223 in/in sits comfortably above the state benchmark of 0.182 in/in. These figures indicate an incredibly fertile environment with superior drought resistance and natural nutrient cycling.
Water Management in the Parish
Specific drainage class and hydrologic group data are not available for this area. However, the high water capacity suggests the land holds moisture well for crops but may require engineered drainage for construction. Growers should monitor local runoff patterns during heavy Gulf rain events.
Thriving in Zone 9a
In USDA Hardiness Zone 9a, this fertile soil supports a wide variety of subtropical crops and citrus. The high soil score makes this an ideal place for high-yield gardening or commercial rice and sugarcane production. Start your garden today to take advantage of some of the state's most nutrient-rich land.
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 Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.9. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Vermilion Parish have?
Vermilion Parish's soil is classified as Silty Clay Loam. This indicates the relative proportions of sand, silt, and clay — 17% sand, 39% silt, and 28% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Vermilion Parish's soil acidic or alkaline?
Vermilion Parish's soil has a pH of 5.9, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Vermilion Parish?
Drainage class data is not currently available for Vermilion Parish.
What crops or plants grow well in Vermilion Parish's soil?
Based on Vermilion Parish's Silty Clay Loam texture, pH of 5.9, 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 Vermilion Parish?
The dominant USDA soil order for Vermilion Parish is not currently available in our dataset.
Soil & Planting Advisory: Vermilion Parish
Soil Verdict
Vermilion 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
Vermilion Parish closely matches the Louisiana average hardiness conditions. The zone range of 9a-9b within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Vermilion 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.