Allen Parish Soil Data
Allen Parish, Louisiana
Avg pH
5.0
Texture
Silt Loam
Drainage
N/A
Organic Matter
1.8%
Hydrologic Group
N/A
Data Story
About Soil in Allen Parish, Louisiana
Highly Acidic Soils in Allen Parish
Allen Parish soil records an average pH of 4.98, which is significantly more acidic than the national median of 6.5. This low pH level can limit nutrient availability for many common garden plants. While taxonomic data is not currently specified, this acidity is a defining characteristic of the local landscape.
A Silty and Sandy Mix
The parish soil consists of 50.8% silt and 36.6% sand, with a smaller 12.7% clay component. This mixture allows for relatively easy digging and moderate drainage. The lower clay content means the soil is less likely to become heavy and sticky when wet, though it may require more frequent fertilization.
Reliable Water Storage Potential
Organic matter sits at 1.77%, which is below the state average of 6.38% and the national average of 2.0%. Despite lower organic levels, the available water capacity of 0.186 in/in remains slightly above the Louisiana average of 0.182 in/in. This allows the soil to hold enough water to sustain growth during short droughts.
Navigating Local Water Dynamics
Researchers have not yet provided specific drainage class or hydrologic group data for this parish. The high sand and silt content suggests that water moves through the profile more readily than in clay-heavy regions. This naturally aids in preventing root rot for many sensitive species.
Thriving in the 9a Climate
Allen Parish sits in Zone 9a, offering a long, warm season for growing peppers, tomatoes, and figs. The acidic soil is naturally suited for acid-loving plants like azaleas and blueberries. Residents should embrace the unique soil profile to create a lush, productive garden.
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: Silt Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Allen Parish have?
Allen Parish's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 37% sand, 51% silt, and 13% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Allen Parish's soil acidic or alkaline?
Allen Parish's soil has a low pH of 5.0, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Allen Parish?
Drainage class data is not currently available for Allen Parish.
What crops or plants grow well in Allen Parish's soil?
Based on Allen Parish's Silt Loam texture, pH of 5.0, 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 Allen Parish?
The dominant USDA soil order for Allen Parish is not currently available in our dataset.
Planning your lawn? View lawn care data for Allen 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.